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Don’t serve disordered eating to your teens this holiday season | CNN

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Editor’s Note: Katie Hurley, author of “No More Mean Girls: The Secret to Raising Strong, Confident and Compassionate Girls,” is a child and adolescent psychotherapist in Los Angeles. She specializes in work with tweens, teens and young adults.

CNN
—

“I have a couple of spots for anyone who wants to lose 20 pounds by the holidays! No diets, exercise, or cravings!”

Ads for dieting and exercise programs like this started appearing in my social media feeds in early October 2022, often accompanied by photos of women pushing shopping carts full of Halloween candy intended to represent the weight they no longer carry with them.

Whether it’s intermittent fasting or “cheat” days, diet culture is spreading wildly, and spiking in particular among young women and girls, a population group who might be at particular risk of social pressures and misinformation.

The fact that diet culture all over social media targets grown women is bad enough, but such messaging also trickles down to tweens and teens. (And let’s be honest, a lot is aimed directly at young people too.) It couldn’t happen at a worse time: There’s been a noticeable spike in eating disorders, particularly among adolescent girls, since the beginning of the pandemic.

“My mom is obsessed with (seeing) her Facebook friends losing tons of weight without dieting. Is this even real?” The question came from a teen girl who later revealed she was considering hiring a health coach to help her eat ‘healthier’ after watching her mom overhaul her diet. Sadly, the coaching she was falling victim to is part of a multilevel marketing brand that promotes quick weight loss through caloric restriction and buying costly meal replacements.

Is it real? Yes. Is it healthy? Not likely, especially for a growing teen.

Later that week, a different teen client asked about a clean eating movement she follows on Pinterest. She had read that a strict clean vegan diet is better for both her and the environment, and assumed this was true because the pinned article took her to a health coaching blog. It seemed legitimate. But a deep dive into the blogger’s credentials, however, showed that the clean eating practices they shared were not actually developed by a nutritionist.

And another teen, fresh off a week of engaging in the “what I eat in a day” challenge — a video trend across TikTok, Instagram and other social media platforms where users document the food they consume in a particular timeframe — told me she decided to temporarily mute her social media accounts. Why? Because the time she’d spent limited her eating while pretending to feel full left her exhausted and unhappy. She had found the trend on TikTok and thought it might help her create healthier eating habits, but ended up becoming fixated on caloric intake instead. Still, she didn’t want her friends to see that the challenge actually made her feel terrible when she had spent a whole week promoting it.

During any given week, I field numerous questions from tweens and teens about the diet culture they encounter online, out in the world, and sometimes even in their own homes. But as we enter the winter holiday season, shame-based diet culture pressure, often wrapped up with toxic positivity to appear encouraging, increases.

“As we approach the holidays, diet culture is in the air as much as lights and music, and it’s certainly on social media,” said Dr. Hina Talib, an adolescent medicine specialist and associate professor of pediatrics at the Albert Einstein College of Medicine in The Bronx, New York. “It’s so pervasive that even if it’s not targeted (at) teens, they are absorbing it by scrolling through it or hearing parents talk about it.”

Social media isn’t the only place young people encounter harmful messaging about body image and weight loss. Teens are inundated with so-called ‘healthy eating’ content on TV and in popular culture, at school and while engaged in extracurricular or social activities, at home and in public spaces like malls or grocery stores — and even in restaurants.

Instead of learning how to eat to fuel their bodies and their brains, today’s teens are getting the message that “clean eating,” to give just one example of a potentially problematic dietary trend, results in a better body — and, by extension, increased happiness. Diets cutting out all carbohydrates, dairy products, gluten, and meat-based proteins are popular among teens. Yet this mindset can trigger food anxiety, obsessive checking of food labels and dangerous calorie restriction.

An obsessive focus on weight loss, toning muscles and improving overall looks actually runs contrary to what teens need to grow at a healthy pace.

“Teens and tweens are growing into their adult bodies, and that growth requires weight gain,” said Oona Hanson, a parent coach based in Los Angeles. “Weight gain is not only normal but essential for health during adolescence.”

The good news in all of this is that parents can take an active role in helping teens craft an emotionally healthier narrative around their eating habits. “Parents are often made to feel helpless in the face of TikTokers, peer pressure or wider diet culture, but it’s important to remember this: parents are influencers, too,” said Hanson. What we say and do matters to our teens.

Parents can take an active role in helping teens craft an emotionally healthier narrative around their eating habits.

Take a few moments to reflect on your own eating patterns. Teens tend to emulate what they see, even if they don’t talk about it.

Parents and caregivers can model a healthy relationship with food by enjoying a wide variety of foods and trying new recipes for family meals. During the holiday season, when many celebrations can involve gathering around the table, take the opportunity to model shared connections. “Holidays are a great time to remember that foods nourish us in ways that could never be captured on a nutrition label,” Hanson said.

Practice confronting unhealthy body talk

The holiday season is full of opportunities to gather with friends and loved ones to celebrate and make memories, but these moments can be anxiety-producing when nutrition shaming occurs.

When extended families gather for holiday celebrations, it’s common for people to comment on how others look or have changed since the last gathering. While this is usually done with good intentions, it can be awkward or upsetting to tweens and teens.

“For young people going through puberty or body changes, it’s normal to be self-conscious or self-critical. To have someone say, ‘you’ve developed’ isn’t a welcome part of conversations,” cautioned Talib.

Talib suggests practicing comebacks and topic changes ahead of time. Role play responses like, “We don’t talk about bodies,” or “We prefer to focus on all the things we’ve accomplished this year.” And be sure to check in and make space for your tween or teen to share and feelings of hurt and resentment over any such comments at an appropriate time.

Open and honest communication is always the gold standard in helping tweens and teens work through the messaging and behaviors they internalize. When families talk about what they see and hear online, on podcasts, on TV, and in print, they normalize the process of engaging in critical thinking — and it can be a really great shared connection between parents and teens.

“Teaching media literacy skills is a helpful way to frame the conversation,” says Talib. “Talk openly about it.”

She suggests asking the following questions when discussing people’s messaging around diet culture:

● Who are they?

● What do you think their angle is?

● What do you think their message is?

● Are they a medical professional or are they trying to sell you something?

● Are they promoting a fitness program or a supplement that they are marketing?

Talking to tweens and teens about this throughout the season — and at any time — brings a taboo topic to the forefront and makes it easier for your kids to share their inner thoughts with you.

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Chinese postpartum confinement, called ‘zuo yue zi,’ is gaining Western appeal | CNN

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Hong Kong
CNN
—

You cannot carry heavy things. You should sleep more. No working. No household chores.

And the list goes on as Carol Chan explained her postpartum instructions for new mom Taylor Richard.

Chan is a “pui yuet,” also called a confinement nanny, who lives with families after a baby is born. She prepares meals and herbal medicines, takes care of the baby and provides guidance on being a new mother.

Richard, a content creator from Canada, traveled to Hong Kong to become a model and fell in love with her husband, Tom, there. They married in November 2018, and Richard gave birth to their son, Levi, in March 2022.

Richard decided to hire Chan, who lived with the family for a month and spent an additional month helping out.

Richard vlogged about her experience with Chan on her YouTube channel, and that video went viral with 2.9 million views. The reaction was mostly admiration and praise from Richard’s primarily Western followers.

The concept of Chinese confinement — “zuo yue zi,” or “sitting the month”— is when a new mother stays at home for one month to allow her body to rest after giving birth.

During that time, the pui yuet makes dishes catering to the mother’s physical needs and helps her with milk production and other concerns. The pui yuet also cares for the mother with massage, body wraps and lessons on how to take care of the new baby.

Richard and Chan declined to share the cost of Chan’s services. Few entities track the pricing of nannies in Hong Kong on a consistent basis because most negotiations are directly between clients and the nannies.

The estimated cost for a pui yuet in Hong Kong ranges from 63,800 Hong Kong dollars (US $8,100) to 268,000 Hong Kong dollars (US $34,100) for 26 to 30 nights for a live-in nanny, according to a 2021 survey by the Consumer Council, a statutory body in Hong Kong dedicated to protecting consumer rights. The council, which surveyed 19 companies or organizations that provide postnatal care, also reported that the cost of a pui yuet working eight hours a day for 26 days ranges from 21,000 Hong Kong dollars (US $2,600) to 34,000 Hong Kong dollars (US $4,300).

This tradition isn’t without criticism, and some have questioned whether the traditional methods of confinement in the Chinese community are too extreme and may be dangerous. In 2015, a new mother in Shanghai following the custom died of heatstroke after wrapping herself in a quilt and turning off the air conditioner, state media reported.

Chan has gotten calls from the US and UK to be a pui yuet after a YouTube video about her went viral.

In recent years, some people have adapted the tradition to more modern ways, taking advantage of available technology. It’s important to turn the air conditioner on when the weather is hot, Chan said, or else you could get sick. The traditional practice had been to avoid anything cold regardless of the weather.

Richard, now 34, said she loved the time she spent with Chan.

“It meant everything! My husband and I both don’t have any family members in Hong Kong, and as new parents we were pretty clueless,” she said via email. “Having someone take care of my body and gently guide me through my transition into motherhood made for a very positive beginning of my baby’s life. I’m forever grateful for Carol!”

Richard was the first Western mother whom Chan cared for in her 12-year career. But since Richard’s YouTube video went viral, Chan said she’s gotten calls from Westerners asking for her services from as far away as the United States and United Kingdom. She’s now headed to Vancouver, British Columbia, in July to work as a pui yuet for a family there for a month.

The kind of care Richard received is expensive, whether the new parents live in Hong Kong or elsewhere. One US location, Boram Postnatal Retreat, opened last year in New York City.

“It was very challenging to get the concept received by others,” cofounder Boram Nam told CNN. “It was a lot about the education process — information is abundant up to until you give birth, and the spotlight completely shifts over to the baby — so we get into that discussion, and people get it.”

Cofounder Boram Nam opened Boram Postnatal Retreat last year in New York for new mothers.

But her program comes with a hefty price tag, starting at three nights for $2700.

“This is the price we do need to charge for the level of service that we provide within the guidelines of what postpartum care looks like in the US,” said Nam, adding that she hopes eventually to get services covered by insurance. “We want to make sure this can be accessible by others, by more women, a more diverse group of people.”

Mandy Major, owner of Major Care, a virtual postpartum doula service based in the US, has noticed a lack of postpartum education in her country.

“We have a lack of systematic postpartum here within our health care system,” Major said. “We have a go-go, hyper-productive, hyper-independent culture, but we also don’t have paid leave.”

Richard’s mostly Western followers on YouTube noted that pressure, commenting on the luxury of taking a month off to spend time recovering and connecting with their babies.

“As an American woman who has given birth 4 times and been booted immediately out of the hospital expected to figure it all out on my own, I can undoubtedly say had this been an option, it may have changed my whole mothering experiences!!” one person said.

“I returned to work 2 weeks postpartum in America,” another mother wrote. “I never felt that I was able to fully bond with my child.”

The month of confinement came to an end for Richard last April. In Richard’s YouTube video, Chan holds Levi one last time and passes him back to his mother as she put her shoes on to leave.

Richard’s eyes begin to fill with tears, surprising herself at her emotional reaction.

“I feel like I’m losing a family member,” she says as the door slowly closes behind Chan, according to the video.

Even after the confinement experience, Chan remains close with Richard’s family, stopping by for lunch occasionally and still giving baby advice.

“If I have another baby, I would love to have it in Canada with my family, but I want Carol to come with me if I do!” Richard said in a video chat later, smiling. “I can’t imagine going through this again without her.”

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Regular internet use may be linked to lower dementia risk in older adults, study says | CNN

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CNN
—

If your parents or grandparents ask you how to post on Instagram or how to send a birthday message to a Facebook friend, a new study suggests you might want to help them – not just to be nice but because getting them online may help their brain health, too.

A study published Wednesday in the Journal of the American Geriatrics Society suggested that older people who regularly used the internet were less likely to develop dementia.

The researchers saw this association after about eight years tracking 18,154 adults between the ages of 50 and 65 who did not have dementia when the study period began.

The adults were a part of the Health and Retirement Study, a multidisciplinary collection of data from a representative sample of people in the US that is gathered by the National Institute on Aging and the Social Security Administration.

Each of the participants was asked a simple question: “Do you regularly use the World Wide Web, or the Internet, for sending and receiving e-mail or for any other purpose, such as making purchases, searching for information, or making travel reservations?”

People who used the internet at the start of the study had about half the risk of dementia as people who were not regular users.

The researchers also looked at how often these adults were online, from not at all to more than eight hours a day. Those who used the internet for about two hours or less a day had the lowest risk of dementia compared with those that didn’t use the internet, who had a “notably higher estimated risk.”

The researchers noted that people who were online six to eight hours a day had a higher risk of dementia, but that finding wasn’t statistically significant, they said, and more research is needed.

Scientists still don’t know what causes dementia, so the new research can’t pinpoint the exact connection between internet usage and brain health. Study co-author Dr. Virginia W. Chang has a few ideas.

“Online engagement may help to develop and maintain cognitive reserve, which can in turn compensate for brain aging and reduce the risk of dementia,” said Chang, an associate professor of global public health at New York University’s School of Global Public Health.

The study also did not look at what people were exploring online. Although the internet is full of cat videos and conspiracy theories, it can also be intellectually stimulating, and some studies have shown that intellectual stimulation may help prevent dementia. A 2020 study found an association between cognitively stimulating jobs and a lower risk of dementia, for example.

As people age, it’s natural for brain processing speeds to slow a little, and it may get harder to remember what’s on all those open browser tabs on your computer. But in a healthy brain, routine memory and knowledge remains pretty stable. People with dementia have trouble with routine brain functions like making new memories, solving problems and completing normal tasks.

About 6.2 million people 65 and older have Alzheimer’s disease, the most common form of dementia, the US Centers for Disease Control and Prevention says. That number is expected to grow exponentially as baby boomers age.

“Overall, this is important research. It identifies another potentially modifiable factor that might influence dementia risk,” said Dr. Claire Sexton, the Alzheimer’s Association’s senior director of scientific programs and outreach, who was not involved in the new study. “But we wouldn’t want to read too much into this study in isolation. It doesn’t establish cause and effect.”

Beyond medications, experts have been looking for ways to help people keep dementia at bay.

The Alzheimer’s Association is working on the US Pointer Study, a two-year clinical trial to pinpoint exactly what lifestyle interventions may lower a person’s risk of dementia.

Risk factors like family history and age can’t be changed, but scientists think there are some healthy behaviors that can reduce the risk of this kind of cognitive decline.

Lifestyle factors like exercise, getting enough sleep, maintaining a healthy weight, keeping blood pressure in check, managing blood sugar, quitting smoking and staying engaged with others may help. Internet surfing isn’t one of the official activities listed by the CDC, but the new study adds to the growing body of evidence that suggests more research could better establish this connection.

The new research isn’t the first to find that the use of the internet may help reduce cognitive decline. One 2020 study found only a smaller cognitive decline in male internet users. Others have not seen a gender difference.

In the latest study, the difference in risk between regular users and those who did not use the internet regularly did not vary by gender, level of education, or race or ethnicity.

Some studies have also shown a benefit to training older adults on computers and have suggested that the internet can positively connect them to others and help them learn information or skills.

Research also suggests that most older adults most frequently use the internet for basic tasks like email, news or online banking. But a growing number are learning newer social platforms like BeReal or dancing and singing on TikTok. And learning new skills may be protective against dementia, studies suggest.

Older adults’ use of social networking sites can also increase their connections to other people and reduce isolation. Some studies have shown that older people who were lonely were three times more likely to develop dementia than those who said they felt socially connected to others.

“We need further evidence, not just from observational studies like this one but also interventional studies,” Sexton said. That way, doctors might someday treat people for dementia like they do with heart disease: by suggesting lifestyle changes in addition to medication.

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Fossilized eggs crack open the mysteries of the past | CNN

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CNN
—

Eggs have been laid on land by birds, reptiles, dinosaurs and a few oddball mammals for more than 200 million years.

And humans have been using some of these eggs as a nutritious source of food, and their shells as bowls, bottles and jewelry for most of our history on the planet.

Though they’ve often been overshadowed by skeletons and bones, fossilized eggshells are a fascinating source of information, illuminating the behavior and diet of ancient creatures, detailing changes in climate and revealing how our prehistoric relatives lived and communicated.

This Easter, here are six surprising things eggs have revealed about the past.

Did dinosaur blood run cold, like a lizard, or warm, like a bird? It’s a topic that’s long divided paleontologists.

An analysis of fossilized dinosaur egg shells suggests it’s the latter. By looking at the order of oxygen and carbon atoms in the fossilized egg shells, researchers were able to calculate a dinosaur mom’s internal body temperature. It’s a process called “clumped isotope paleothermometry.”

“Eggs, because they are formed inside dinosaurs, act like ancient thermometers,” said Pincelli Hull, an assistant professor at Yale University’s department of geology and geophysics, and a coauthor of the study, which published in 2020.

Hull and her colleagues found that the samples they tested suggested dinosaurs’ body temperatures were warmer than their surroundings would have been.

The research indicates that unlike reptiles, which rely on heat from the environment, dinosaurs were capable of internally generating heat – more like birds.

A study of fossilized eggshells revealed humans may have been hatching and raising cassowaries for more than 18,000 years.

You might think that chickens—or even ducks or turkeys—were the earliest birds to be domesticated by humans.

However, eggshell fragments found at two prehistoric sites in Papua New Guinea suggest that humans may have been raising cassowaries—often described as the world’s most dangerous birds because of a daggerlike claw they have on each foot—as early as 18,000 years ago.

Territorial, aggressive and often compared to a dinosaur in looks, the bird is a surprising candidate for domestication. But a study of more than 1,000 fossilized Papua New Guinea eggshell fragments has suggested the birds were deliberately hatched.

To reach their conclusions, the researchers first studied the eggshells of living birds, including turkeys, emus and ostriches. The insides of the eggshells change as the developing chicks get calcium from the eggshell. Using high-resolution 3D images and inspecting the inside of the eggs, the researchers were able to build a model of what the eggs looked like during different stages of incubation.

The scientists tested their model on modern emu and ostrich eggs before applying it to the fossilized eggshell fragments found in New Guinea. The team found that most of the eggshells found at the sites were all near maturity—suggesting they were hatched, not eaten.

The first oviraptor fossil—from a family of dinosaurs with parrotlike beaks—was discovered in Mongolia in the 1920s, lying near a nest of eggs thought to belong to a rival. Paleontologists at the time assumed that the animal had died while attempting to plunder the nest and named the creature “egg thief.”

It wasn’t until the 1990s that its reputation was restored when another discovery revealed that the eggs were its own. Subsequent finds, including an oviraptosaur hunched over 24 eggs made public last year, have revealed that this particular type of dinosaur was a doting parent.

At least seven of the 24 eggs preserved the bones of partial embryos found inside; it was the first time a fossil had preserved this level of detail. These embryos were at a late stage of development, and the close proximity of the parent confirmed that this dinosaur really did incubate its nest like its modern bird cousins.

The neat layout of oviraptor nests also suggested that they were brooders that sat upon eggs to hatch them—even giant oviraptors that weighed 1,500 kilograms (3,307 pounds) and laid half-meter long eggs, said Darla Zelenitsky, a dinosaur egg expert and associate professor in the department of geoscience at the University of Calgary in Canada.

“These fossils also show very precisely arranged eggs, stacked in rings, probably optimized for sitting on the eggs,” she explained.

The 2-meter-wide (6.6-foot-wide) nests of giant oviraptors were a slightly modified shape to stop them from being crushed, she added.

Dinosaurs eggs—including one with a perfectly preserved baby dinosaur curled up inside—increasingly show that birds inherited many characteristics from dinosaurs. Not all dinosaurs, however, were caring parents.

Pores on the surface of eggs allow the diffusion of water, oxygen and carbon dioxide, and the orientation, density and number of pores on the eggs of living animals can reveal whether they are laid in open nests or underground. Applying this knowledge to fossilized dinosaur eggs has shed light on their nesting behavior.

Analysis suggests that many dinosaurs, including hulking plant-eating sauropods, laid their eggs underground in burrows, more like reptiles.

A string of modern ostrich eggshell beads from eastern Africa is shown.

Ostrich eggshells are found in archaeological dig sites throughout Africa. Early humans used the large eggs as water bottles and, for tens of thousands of years, ancient humans took the remains and fashioned them into decorative beads that are still made today.

These beads have been found all over Africa—including in areas where ostriches never lived – sparking the question of how they got there.

The answer is hidden in the eggs’ geochemistry. Researchers looked at the signatures of different isotopes or variants of the element strontium in the beads—these vary depending on where the ostriches would have fed before laying the eggs.

Older rock formations including granite are found to have more strontium than younger rocks like basalt, and this is reflected in the vegetation that grows around them.

The geochemistry of the beads showed they traveled long distances. They were traded or exchanged in what was described as an early social network.

Eggs are a big part of our diet today – something that was also true in the Stone Age.

In fact, ancient Australians’ appetite for the eggs laid by the 2-meter-tall (6-foot-tall) Genyornis could have been one significant reason why the large, flightless birds went extinct 47,000 years ago.

Burn patterns on eggshell fragments of the giant bird found at around 200 sites across Australia, were created by humans discarding eggshell in and around makeshift fires, presumably made to cook the eggs.

Chemical signatures of nitrogen and carbon isotopes in fossilized egg shells can also track vegetation changes, gleaning information about past changes in climate, which can reveal ecological shifts that could impact the survival of these species over time.

A study of emu eggshells found across Australia over a 100,000-year time period do not show a massive shift in climate that researchers believe could have led to the extinction of Genyornis.

This suggested that the extinction of these giant birds was caused by humans, not ecological changes, the study said.

Fossilized penguin, ostrich and emu eggshells have revealed what the climate was like in the ancient Antarctic, South Africa and Australia. More recent egg collections are revealing how the current climate crisis is changing the natural world today.

By comparing birds’ eggs collected during the Victorian era and modern eggs held by the Field Museum and other institutions, researchers found that several bird species in the Chicago area nest and lay eggs almost a full month earlier now than they did a century ago.

Of the 72 species documented in the data, a third have been nesting earlier and earlier, the team found. Birds that changed their nesting habits laid eggs around 25 days sooner, on average.

Similar patterns are seen in insects, which many birds eat, and plants, suggesting that climate change is already changing ecosystems, the authors of the study said.

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When we’ll be able to 3D-print organs and who will be able to afford them | CNN

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What if doctors could just print a kidney, using cells from the patient, instead of having to find a donor match and hope the patient’s body doesn’t reject the transplanted kidney?

The soonest that could happen is in a decade, thanks to 3D organ bioprinting, said Jennifer Lewis, a professor at Harvard University’s Wyss Institute for Biologically Inspired Engineering. Organ bioprinting is the use of 3D-printing technologies to assemble multiple cell types, growth factors and biomaterials in a layer-by-layer fashion to produce bioartificial organs that ideally imitate their natural counterparts, according to a 2019 study.

This type of regenerative medicine is in the development stage, and the driving force behind this innovation is “real human need,” Lewis said.

In the United States, there are 106,800 men, women and children on the national organ transplant waiting list as of March 8, 2023, according to the Health Resources & Services Administration. However, living donors provide only around 6,000 organs per year on average, and there are about 8,000 deceased donors annually who each provide 3.5 organs on average.

The cause of this discrepancy is “a combination of people who undergo catastrophic health events, but their organs aren’t high enough quality to donate, or they’re not on the organ donor list to begin with, and the fact that it’s actually very difficult to find a good match” so the patient’s body doesn’t reject the transplanted organ, Lewis said.

And even though living donors are an option, “to do surgery on someone who doesn’t need it” is a big risk, said Dr. Anthony Atala, director of the Wake Forest Institute for Regenerative Medicine. “So, living related donors are usually not the preferred way to go because then you’re taking an organ away from somebody else who may need it, especially now as we age longer.”

Atala and his colleagues were responsible for growing human bladders in a lab by hand in 2006, and implanting a complicated internal organ into people for the first time — saving the lives of three children in whom they implanted the bladders.

Every day, 17 people die waiting for an organ transplant, according to the Health Resources & Services Administration. And every 10 minutes, another person is added to the waitlist, the agency says. More than 90% of the people on the transplant list in 2021 needed a kidney.

“About a million people worldwide are in need of a kidney. So they have end-stage renal failure, and they have to go on dialysis,” Lewis said. “Once you go on dialysis, you have essentially five years to live, and every year, your mortality rate increases by 15%. Dialysis is very hard on your body. So this is really motivating to take on this grand challenge of printing organs.”

“Anti-hypertensive pills are not scarce. Everybody who needs them can get them,” Martine Rothblatt, CEO and chairman of United Therapeutics, said in June 2022 at the Life Itself conference, a health and wellness event presented in partnership with CNN. United Therapeutics was one of the conference sponsors.

“There is no practical reason why anybody who needs a kidney — or a lung, a heart, a liver — should not be able to get one,” she added. “We’re using technology to solve this problem.”

To begin the process of bioprinting an organ, doctors typically start with a patient’s own cells. They take a small needle biopsy of an organ or do a minimally invasive surgical procedure that removes a small piece of tissue, “less than half the size of a postage stamp,” Atala said. “By taking this small piece of tissue, we are able to tease cells apart (and) we grow and expand the cells outside the body.”

This growth happens inside a sterile incubator or bioreactor, a pressurized stainless steel vessel that helps the cells stay fed with nutrients — called “media” — the doctors feed them every 24 hours, since cells have their own metabolism, Lewis said. Each cell type has a different media, and the incubator or bioreactor acts as an oven-like device mimicking the internal temperature and oxygenation of the human body, Atala said.

“Then we mix it with this gel, which is like a glue,” Atala said. “Every organ in your body has the cells and the glue that holds it together. Basically, that’s also called ‘extracellular matrix.’”

This glue is Atala’s nickname for bioink, a printable mixture of living cells, water-rich molecules called hydrogels, and the media and growth factors that help the cells continue to proliferate and differentiate, Lewis said. The hydrogels mimic the human body’s extracellular matrix, which contains substances including proteins, collagen and hyaluronic acid.

The non-cell sample portion of the glue can be made in a lab, and “is going to have the same properties of the tissue you’re trying to replace,” Atala said.

The biomaterials used typically have to be nontoxic, biodegradable and biocompatible to avoid a negative immune response, Lewis said. Collagen and gelatin are two of the most common biomaterials used for bioprinting tissues or organs.

From there, doctors load each bioink — depending on how many cell types they’re wanting to print — into a printing chamber, “using a printhead and nozzle to extrude an ink and build the material up layer by layer,” Lewis said. Creating tissue with personalized properties is enabled by printers being programmed with a patient’s imaging data from X-rays or scans, Atala said.

“With a color printer you have several different cartridges, and each cartridge is printing a different color, and you come up with your (final) color,” Atala added. Bioprinting is the same; you’re just using cells instead of traditional inks.

How long the printing process takes depends on several factors, including the organ or tissue being printed, the fineness of the resolution and the number of printheads needed, Lewis said. But it typically lasts a few to several hours. The time from the biopsy to the implantation is about four to six weeks, Atala said.

A 3D printer seeds different types of cells onto a kidney scaffold at the Wake Forest Institute for Regenerative Medicine.

The ultimate challenge is “getting the organs to actually function as they should,” so accomplishing that “is the holy grail,” Lewis said.

“Just like if you were to harvest an organ from a donor, you have to immediately get that organ into a bioreactor and start perfusing it or the cells die,” she added. To perfuse an organ is to supply it with fluid, usually blood or a blood substitute, by circulating it through blood vessels or other channels.

Depending on the organ’s complexity, there is sometimes a need to mature the tissue further in a bioreactor or further drive connections, Lewis said. “There’s just a number of plumbing issues and challenges that have to be done in order to make that printed organ actually function like a human organ would in vivo (meaning in the body). And honestly, this has not been fully solved yet.”

Once a bioprinted organ is implanted into a patient, it will naturally degrade over time — which is OK since that’s how it’s designed to work.

“You’re probably wondering, ‘Well, then what happens to the tissue? Will it fall apart?’ Actually, no,” Atala said. “These glues dissolve, and the cells sense that the bridge is giving way; they sense that they don’t have a firm footing anymore. So cells do what they do in your very own body, which is to create their own bridge and create their own glue.”

Atala and Lewis are conservative in their estimates about the number of years remaining before fully functioning bioprinted organs can be implanted into humans.

“The field’s moving fast, but I mean, I think we’re talking about a decade plus, even with all of the tremendous progress that’s been made,” Lewis said.

“I learned so many years ago never to predict because you’ll always be wrong,” Atala said. “There’s so many factors in terms of manufacturing and the (US Food and Drug Administration regulation). At the end of the day, our interest, of course, is to make sure the technologies are safe for the patient above all.”

Whenever bioprinting organs becomes an available option, affordability for patients and their caregivers shouldn’t be an issue.

They’ll be “accessible for sure,” Atala said. “The costs associated with organ failures are very high. Just to keep a patient on dialysis is over a quarter of a million dollars per year, just to keep one patient on dialysis. So, it’s a lot cheaper to create an organ that you can implant into the patient.”

The average kidney transplant cost was $442,500 in 2020, according to research published by the American Society of Nephrology — while 3D printers retail for around a few thousand dollars to upward of $100,000, depending on their complexity. But even though low-cost printers are available, pricey parts of bioprinting can include maintaining cell banks for patients, culturing cells and safely handling biological materials, Lewis said.

Some of the major costs of current organ transplantation are “harvesting the organ from the donor, the transport costs and then, of course, the surgery that the recipient goes through, and then all the care and monitoring,” Lewis said. “Some of that cost would still be in play, even if it was bioprinted.”

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Beware the budget butt lift, regulators warn amid social media-inspired boom | CNN

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In hindsight, Nikki Ruston said, she should have recognized the red flags.

The office in Miami where she scheduled what’s known as a Brazilian butt lift had closed and transferred her records to a different facility, she said. The price she was quoted – and paid upfront – increased the day of the procedure, and she said she did not meet her surgeon until she was about to be placed under general anesthesia.

“I was ready to walk out,” said Ruston, 44, of Lake Alfred in Central Florida. “But I had paid everything.”

A few days after the July procedure, Ruston was hospitalized due to infection, blood loss, and nausea, her medical records show.

“I went cheap. That’s what I did,” Ruston recalled recently. “I looked for the lowest price, and I found him on Instagram.”

People like Ruston are commonly lured to office-based surgery centers in South Florida through social media marketing that makes Brazilian butt lifts and other cosmetic surgery look deceptively painless, safe, and affordable, say researchers, patient advocates, and surgeon groups.

Unlike ambulatory surgery centers and hospitals, where a patient might stay overnight for observation after treatment, office-based surgery centers offer procedures that don’t typically require an inpatient stay and are regulated as an extension of a doctor’s private practice.

But such surgical offices are often owned by corporations that can offer discount prices by contracting with surgeons who are incentivized to work on as many patients per day as possible, in as little time as possible, according to state regulators and physicians critical of the facilities.

Ruston said she now lives with constant pain, but for other patients a Brazilian butt lift cost them their lives. After a rash of deaths, and in the absence of national standards, Florida regulators were the first in the nation to enact rules in 2019 meant to make the procedures safer. More than three years later, data shows deaths still occur.

Patient advocates and some surgeons – including those who perform the procedure themselves – anticipate the problem will only get worse. Emergency restrictions imposed by the state’s medical board in June expired in September, and the corporate business model popularized in Miami is spreading to other cities.

“We’re seeing entities that have a strong footprint in low-cost, high-volume cosmetic surgery, based in South Florida, manifesting in other parts of the country,” said Dr. Bob Basu, a vice president of the American Society of Plastic Surgeons and a practicing physician in Houston.

During a Brazilian butt lift, fat is taken via liposuction from other areas of the body – such as the torso, back, or thighs – and injected into the buttocks. More than 61,000 buttock augmentation procedures, both butt lifts and implants, were performed nationwide in 2021, a 37% increase from the previous year, according to data from the Aesthetic Society, a trade group of plastic surgeons.

As with all surgery, complications can occur. Miami-Dade County’s medical examiner has documented nearly three dozen cosmetic surgery patient deaths since 2009, of which 26 resulted from a Brazilian butt lift. In each case, the person died from a pulmonary fat embolism, when fat entered the bloodstream through veins in the gluteal muscles and stopped blood from flowing to the lungs.

No national reporting system nor insurance code tracks outcomes and patient demographics for a Brazilian butt lift. About 3% of surgeons worldwide had a patient die as a result of the procedure, according to a 2017 report from an Aesthetic Surgery Education and Research Foundation task force.

Medical experts said the problem is driven, in part, by having medical professionals like physician assistants and nurse practitioners perform key parts of the butt lift instead of doctors. It’s also driven by a business model that is motivated by profit, not safety, and incentivizes surgeons to exceed the number of surgeries outlined in their contracts.

In May, after a fifth patient in as many months died of complications in Miami-Dade County, Dr. Kevin Cairns proposed the state’s emergency rule to limit the number of butt lifts a surgeon could perform each day.

“I was getting sick of reading about women dying and seeing cases come before the board,” said Cairns, a physician and former member of the Florida Board of Medicine.

Some doctors performed as many as seven, according to disciplinary cases against surgeons prosecuted by the Florida Department of Health. The emergency rule limited them to no more than three, and required the use of an ultrasound to help surgeons lower the risk of a pulmonary fat clot.

But a group of physicians who perform Brazilian butt lifts in South Florida clapped back and formed Surgeons for Safety. They argued the new requirements would make the situation worse. Qualified doctors would have to do fewer procedures, they said, thus driving patients to dangerous medical professionals who don’t follow rules.

The group has since donated more than $350,000 to the state’s Republican Party, Republican candidates, and Republican political action committees, according to campaign contribution data from the Florida Department of State.

Surgeons for Safety declined KHN’s repeated interview requests. Although the group’s president, Dr. Constantino Mendieta, wrote in an August editorial that he agreed not all surgeons have followed the standard of care, he called the limits put on surgeons “arbitrary.” The rule sets “a historic precedent of controlling surgeons,” he said during a meeting with Florida’s medical board.

In January, Florida state Sen. Ileana Garcia, a Republican, filed a draft bill with the state legislature that proposes no limit on the number of Brazilian butt lifts a surgeon can perform in a day. Instead, it requires office surgery centers where the procedures are performed to staff one physician per patient and prohibits surgeons from working on more than one person at a time.

The bill would also allow surgeons to delegate some parts of the procedure to other clinicians under their direct supervision, and the surgeon must use an ultrasound.

Florida’s legislature convenes on March 7.

Consumers considering cosmetic procedures are urged to be cautious. Like Ruston, many people base their expectations on before-and-after photos and marketing videos posted on social media platforms such as Facebook, Snapchat, and Instagram.

“That’s very dangerous,” said Basu, of the American Society of Plastic Surgeons. “They’re excited about a low price and they forget about doing their homework,” he said.

The average price of a buttocks augmentation in 2021 was $4,000, according to data from the Aesthetic Society. But that’s only for the physician’s fee and does not cover anesthesia, operating room fees, prescriptions, or other expenses. A “safe” Brazilian butt lift, performed in an accredited facility and with proper aftercare, costs between $12,000 and $18,000, according to a recent article on the American Society of Plastic Surgeons’ website.

Although Florida requires a physician’s license to perform liposuction on patients who are under general anesthesia, it’s common in the medical field for midlevel medical practitioners, such as physician assistants and nurse practitioners, to do the procedure in office settings, according to Dr. Mark Mofid, who co-authored the 2017 Aesthetic Surgery Education and Research Foundation task force study.

By relying on staffers who don’t have the same specialty training and get paid less, office-based surgeons can complete more butt lifts per day and charge a lower price.

“They’re doing all of them simultaneously in three or four different rooms, and it’s being staffed by one surgeon,” said Mofid, a plastic surgeon in San Diego, who added that he does not perform more than one Brazilian butt lift in a day. “The surgeon isn’t doing the actual case. It’s assistants.”

Basu said patients should ask whether their doctor holds privileges to perform the same procedure at a hospital or ambulatory surgery center, which have stricter rules than office surgery centers in terms of who can perform butt lifts and how they should be done.

People in search of bargains are reminded that cosmetic surgery can have other serious risks beyond the deadly fat clots, such as infection and organ puncture, plus problems with the kidneys, heart, and lungs.

Ruston’s surgery was performed by a board-certified plastic surgeon she said she found on Instagram. She was originally quoted $4,995, which she said she paid in full before surgery. But when she arrived in Miami, she said, the clinic tacked on fees for liposuction and for post-surgical garments and devices.

“I ended up having to pay, like, $8,000,” Ruston said. A few days after Ruston returned home to Lake Alfred, she said, she started to feel dizzy and weak and called 911.

Paramedics took her to an emergency room, where doctors diagnosed her with anemia due to blood loss, and blood and abdominal infections, her medical records show.

“If I could go back in time,” she said, “I wouldn’t have had it done.”

KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

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Celebrities may have helped shape anti-vaccine opinions during Covid-19 pandemic, study finds | CNN

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CNN
—

Covid-19 vaccines are known to be safe and effective, and they’re available for free, but many Americans in the US refuse to get them – and a recent study suggests that celebrities may share some of the blame for people’s mistrust.

Celebrities have long tried to positively influence public health, studies show, but during the Covid-19 pandemic, they also seemed to have a large influence on spreading misinformation.

Decades ago, in the 1950s, people could see stars like Elvis Presley, Dick Van Dyke and Ella Fitzgerald in TV ads that encouraged polio vaccination. This celebrity influence boosted the country’s general vaccination efforts, and vaccination nearly eliminated the deadly disease.

In 2021, US officials used celebrities in TV ads to encourage more people to get vaccinated against Covid-19. Big names like lifestyle guru Martha Stewart, singer Charlie Puth and even Senate Minority Leader Mitchell McConnell showed up in spots that had billions of ad impressions.

The world isn’t restricted to only three TV networks any more, so celebrities like actress Hilary Duff, actor Dwayne “The Rock” Johnson, singer Dolly Parton and even Big Bird also used their enormous presence on Instagram and Twitter to promote a pro Covid-19 vaccine message.

But social media also became a vehicle for celebrities to cast doubt about the safety and effectiveness of the vaccine and even to spread disinformation about Covid.

Their negative messages seemed to find an audience.

For their study, published in the journal BMJ Health & Care Informatics, researchers examined nearly 13 million tweets between January 2020 and March 2022 about Covid-19 and vaccines. They designed a natural language model to determine the sentiment of each tweet and compared them with tweets that also mentioned people in the public eye.

The stars they picked to analyze included people who had shared skepticism about the vaccines, who had Covid-related tweets that were identified as misinformation or who retweeted misinformation about Covid.

They included rapper Nicki Minaj, football player Aaron Rodgers, tennis player Novak Djokovic, singer Eric Clapton, Sen. Rand Paul, former President Donald Trump, Sen. Ted Cruz, Florida Gov. Ron DeSantis, TV host Tucker Carlson and commentator Joe Rogan.

The researchers found 45,255 tweets from 34,407 unique authors talking about Covid-19 vaccine-related issues. Those tweets generated a total of 16.32 million likes. The tweets from these influencers, overall, were more negative about the vaccine than positive, the study found. These tweets were specifically more related to antivaccine controversy, rather than news about vaccine development, the study said.

The highest number of negative comments was associated with Rodgers and Minaj. Clapton had “very few” positive tweets, the study said, and that may have had an influence, but he also caught flak for it from the public.

The most-liked tweet that mentioned Clapton and the vaccine said, “Strongly disagree with [EC] … take on Covid and the vaccine and disgusted by his previous white supremacist comments. But if you reference the death of his son to criticize him, you are an ignorant scumbag.”

Trump and Cruz were found to have the most substantial impact within this group, with combined likes totaling more than 122,000.

They too came in for criticism on the topic, with many users wondering whether these politicians were qualified to have opinions about the vaccines. The study said the most-liked tweet mentioning Cruz was, “I called Ted Cruz’s office asking to make an appointment to talk with the Senator about my blood pressure. They told me that the Senator was not qualified to give medical advice and that I should call my doctor. So I asked them to stop advising about vaccines.”

The most-liked tweet associated with Rogan was an antivaxx statement: “I love how the same people who don’t want us to listen to Joe Rogan, Aaron Rodgers about the covid vaccine, want us to listen to Big Bird & Elmo.”

Posts shared by news anchors and politicians seemed to have the most influence in terms of the most tweets and retweets, the study found.

“Our findings suggest that the presence of consistent patterns of emotional content co-occurring with messaging shared by those persons in the public eye that we’ve mentioned, influenced public opinion and largely stimulated online public discourse, for the at least over the course of the first two years of the Covid pandemic,” said study co-author Brianna White, a research coordinator in the Population Health Intelligence lab at the University of Tennessee Health Science Center – Oak Ridge National Laboratory Center for Biomedical Informatics.

“We also argue that obviously as the risk of severe negative health outcomes increase with the failure to comply with health protective behavior recommendations, that our findings suggest that polarized messages from societal elite may downplay those severe negative health outcome risks.”

The study doesn’t get into exactly why celebrity tweets would have such an impact on people’s attitudes about the vaccine. Dr. Ellen Selkie, who has conducted research on influence at the intersection of social media, celebrity and public health outcomes, said celebrities are influential because they attract a lot of attention.

“I think part of the influence that media have on behavior has to do with the amount of exposure. Just in general, the volume of content that is focused on a specific topic or on a specific sort of interpretation of that topic – in this case misinformation – the repeated exposure to any given thing is going to increase the likelihood that it’s going to have an effect,” said Selkie, who was not involved in the new research. She is an adolescent health pediatrician and researcher with UW Health Kids and an assistant professor of pediatrics at the University of Wisconsin School of Medicine and Public Health.

Just as people listen to a friend’s thoughts, they’ll listen to a celebrity whom they tend to like or identify with because they trust their opinion.

“With fandoms, in terms of the relationship between musical artists and actors and their fans, there is this sort of mutual love that fans and artists have for each other, which sort of can approximate that sense that they’re looking out for each other,” Selkie said.

She said she would be interested to see research on the influence of celebrities who tweeted positive messages about the Covid-19 vaccine.

The authors of the study hope public health leaders will use the findings right away.

“We argue this threat to population health should create a sense of urgency and warrants public health response to identify, develop and implement innovative mitigation strategies,” the study says.

Exposure to large amounts of this misinformation can have a lasting impact and work against the public’s best interest when it comes to their health.

“As populations grow to trust the influential nature of celebrity activity on social platforms, followers are disarmed and open to persuasion when faced with false information, creating opportunities for dissemination and rapid spread of misinformation and disinformation,” the study says.

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Most Americans are uncomfortable with artificial intelligence in health care, survey finds | CNN

CNN
—

Most Americans feel “significant discomfort” about the idea of their doctors using artificial intelligence to help manage their health, a new survey finds, but they generally acknowledge AI’s potential to reduce medical mistakes and to eliminate some of the problems doctors may have with racial bias.

Artificial intelligence is the theory and development of computer programs that can solve problems and perform tasks that typically would require human intelligence – machines that can essentially learn like humans can, based on the input they have been given.

You probably already use technology that relies on artificial intelligence every day without even thinking about it.

When you shop on Amazon, for example, it’s artificial intelligence that guides the site to recommend cat toys if you’ve previously shopped for cat food. AI can also help unlock your iPhone, drive your Tesla, answer customer service questions at your bank and recommend the next show to binge on Netflix.

Americans may like these individualized services, but when it comes to AI and their health care, it may be a digital step too far for many.

Sixty percent of Americans who took part in a new survey by the Pew Research Center said that they would be uncomfortable with a health care provider who relied on artificial intelligence to do something like diagnose their disease or recommend a treatment. About 57% said that the use of artificial intelligence would make their relationship with their provider worse.

Only 38% felt that using AI to diagnose disease or recommend treatment would lead to better health outcomes; 33% said it would lead to worse outcomes; and 27% said it wouldn’t make much of a difference.

About 6 in 10 Americans said they would not want AI-driven robots to perform parts of their surgery. Nor do they like the idea of a chatbot working with them on their mental health; 79% said they wouldn’t want AI involved in their mental health care. There’s also concern about security when it comes to AI and health care records.

“Awareness of AI is still developing. So one dynamic here is, the public isn’t deeply familiar with all of these technologies. And so when you consider their use in a context that’s very personal, something that’s kind of high-stakes as your own health, I think that the notion that folks are still getting to know this technology is certainly one dynamic at play,” said Alec Tyson, Pew’s associate director of research.

The findings, released Wednesday, are based on a survey of 11,004 US adults conducted from December 12-18 using the center’s American Trends Panel, an online survey group recruited through random sampling of residential addresses across the country. Pew weights the survey to reflect US demographics including race, gender, ethnicity, education and political party affiliation.

The respondents expressed concern over the speed of the adoption of AI in health and medicine. Americans generally would prefer that health care providers move with caution and carefully consider the consequences of AI adoption, Tyson said.

But they’re not totally anti-AI when it comes to health care. They’re comfortable with using it to detect skin cancer, for instance; 65% thought it could improve the accuracy of a diagnosis. Some dermatologists are already exploring the use of AI technology in skin cancer diagnosis, with some limited success.

Four in 10 Americans think AI could also help providers make fewer mistakes, which are a serious problem in health care. A 2022 study found that medical errors cost about $20 billion a year and result in about 100,000 deaths each year.

Some Americans also think AI may be able to build more equity into the health care system.

Studies have shown that most providers have some form of implicit bias, with more positive attitudes toward White patients and negative attitudes toward people of color, and that could affect their decision-making.

Among the survey participants who understand that this kind of bias exists, the predominant view was that AI could help when it came to diagnosing a disease or recommending treatments, making those decisions more data-driven.

Tyson said that when people were asked to describe in their own words how they thought AI would help fight bias, one participant cited class bias: They believed that, unlike a human provider, an AI program wouldn’t make assumptions about a person’s health based on the way they dressed for the appointment.

“So this is a sense that AI is more neutral or at least less biased than humans,” Tyson said. However, AI is developed with human input, so experts caution that it may not always be entirely without bias.

Pew’s earlier surveys about artificial intelligence have found a general openness to AI, he said, particularly when it’s used to augment, rather than replace, human decision-making.

“AI as just a piece of the process in helping a human make a judgment, there is a good amount of support for that,” Tyson said. “Less so for AI to be the final decision-maker.”

For years, radiologists have used AI to analyze x-rays and CT scans to look for cancer and improve diagnostic capacity. About 30% of radiologists use AI as a part of their practice, and that number is growing, a survey found – but more than 90% in that survey said they wouldn’t trust these tools for autonomous use.

Dr. Victor Tseng, a pulmonologist and medical director of California-based Ansible Health, said that his practice is one of many that have been exploring the AI program ChatGPT. His group has set up a committee to look into its uses and to discuss the ethics around using it so the practice could set up guardrails before putting it into clinical practice.

Tseng’s group published a study this month that showed that ChatGPT could correctly answer enough practice questions that it would have passed the US Medical Licensing Examination.

Tseng said he doesn’t believe that AI will ever replace doctors, but he thinks technology like ChatGPT could make the medical profession more accessible. For example, a doctor could ask ChatGPT to simplify complicated medical jargon so that someone with a seventh-grade education could understand.

“AI is here. The doors are open,” Tseng said.

The Pew survey findings suggest that attitudes could shift as more Americans become more familiar with artificial intelligence. Survey respondents who were more familiar with a technology were more supportive of it, but they still shared caution that doctors could move too quickly in adopting it.

“Whether you’ve heard a lot about AI, just a little or maybe even nothing at all, all of those segments of the public are really in the same space,” Tyson said. “They echo this sentiment of caution of wanting to move carefully in AI adoption in health care.”

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Paging Dr. AI? What ChatGPT and artificial intelligence could mean for the future of medicine | CNN

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CNN
—

Without cracking a single textbook, without spending a day in medical school, the co-author of a preprint study correctly answered enough practice questions that it would have passed the real US Medical Licensing Examination.

But the test-taker wasn’t a member of Mensa or a medical savant; it was the artificial intelligence ChatGPT.

The tool, which was created to answer user questions in a conversational manner, has generated so much buzz that doctors and scientists are trying to determine what its limitations are – and what it could do for health and medicine.

ChatGPT, or Chat Generative Pre-trained Transformer, is a natural language-processing tool driven by artificial intelligence.

The technology, created by San Francisco-based OpenAI and launched in November, is not like a well-spoken search engine. It isn’t even connected to the internet. Rather, a human programmer feeds it a vast amount of online data that’s kept on a server.

It can answer questions even if it has never seen a particular sequence of words before, because ChatGPT’s algorithm is trained to predict what word will come up in a sentence based on the context of what comes before it. It draws on knowledge stored on its server to generate its response.

ChatGPT can also answer followup questions, admit mistakes and reject inappropriate questions, the company says. It’s free to try while its makers are testing it.

Artificial intelligence programs have been around for a while, but this one generated so much interest that medical practices, professional associations and medical journals have created task forces to see how it might be useful and to understand what limitations and ethical concerns it may bring.

Dr. Victor Tseng’s practice, Ansible Health, has set up a task force on the issue. The pulmonologist is a medical director of the California-based group and a co-author of the study in which ChatGPT demonstrated that it could probably pass the medical licensing exam.

Tseng said his colleagues started playing around with ChatGPT last year and were intrigued when it accurately diagnosed pretend patients in hypothetical scenarios.

“We were just so impressed and truly flabbergasted by the eloquence and sort of fluidity of its response that we decided that we should actually bring this into our formal evaluation process and start testing it against the benchmark for medical knowledge,” he said.

That benchmark was the three-part test that US med school graduates have to pass to be licensed to practice medicine. It’s generally considered one of the toughest of any profession because it doesn’t ask straightforward questions with answers that can easily found on the internet.

The exam tests basic science and medical knowledge and case management, but it also assesses clinical reasoning, ethics, critical thinking and problem-solving skills.

The study team used 305 publicly available test questions from the June 2022 sample exam. None of the answers or related context was indexed on Google before January 1, 2022, so they would not be a part of the information on which ChatGPT trained. The study authors removed sample questions that had visuals and graphs, and they started a new chat session for each question they asked.

Students often spend hundreds of hours preparing, and medical schools typically give them time away from class just for that purpose. ChatGPT had to do none of that prep work.

The AI performed at or near passing for all the parts of the exam without any specialized training, showing “a high level of concordance and insight in its explanations,” the study says.

Tseng was impressed.

“There’s a lot of red herrings,” he said. “Googling or trying to even intuitively figure out with an open-book approach is very difficult. It might take hours to answer one question that way. But ChatGPT was able to give an accurate answer about 60% of the time with cogent explanations within five seconds.”

Dr. Alex Mechaber, vice president of the US Medical Licensing Examination at the National Board of Medical Examiners, said ChatGPT’s passing results didn’t surprise him.

“The input material is really largely representative of medical knowledge and the type of multiple-choice questions which AI is most likely to be successful with,” he said.

Mechaber said the board is also testing ChatGPT with the exam. The members are especially interested in the answers the technology got wrong, and they want to understand why.

“I think this technology is really exciting,” he said. “We were also pretty aware and vigilant about the risks that large language models bring in terms of the potential for misinformation, and also potentially having harmful stereotypes and bias.”

He believes that there is potential with the technology.

“I think it’s going to get better and better, and we are excited and want to figure out how do we embrace it and use it in the right ways,” he said.

Already, ChatGPT has entered the discussion around research and publishing.

The results of the medical licensing exam study were even written up with the help of ChatGPT. The technology was originally listed as a co-author of the draft, but Tseng says that when the study is published, ChatGPT will not be listed as an author because it would be a distraction.

Last month, the journal Nature created guidelines that said no such program could be credited as an author because “any attribution of authorship carries with it accountability for the work, and AI tools cannot take such responsibility.”

But an article published Thursday in the journal Radiology was written almost entirely by ChatGPT. It was asked whether it could replace a human medical writer, and the program listed many of its possible uses, including writing study reports, creating documents that patients will read and translating medical information into a variety of languages.

Still, it does have some limitations.

“I think it definitely is going to help, but everything in AI needs guardrails,” said Dr. Linda Moy, the editor of Radiology and a professor of radiology at the NYU Grossman School of Medicine.

She said ChatGPT’s article was pretty accurate, but it made up some references.

One of Moy’s other concerns is that the AI could fabricate data. It’s only as good as the information it’s fed, and with so much inaccurate information available online about things like Covid-19 vaccines, it could use that to generate inaccurate results.

Moy’s colleague Artie Shen, a graduating Ph.D. candidate at NYU’s Center for Data Science, is exploring ChatGPT’s potential as a kind of translator for other AI programs for medical imaging analysis. For years, scientists have studied AI programs from startups and larger operations, like Google, that can recognize complex patterns in imaging data. The hope is that these could provide quantitative assessments that could potentially uncover diseases, possibly more effectively than the human eye.

“AI can give you a very accurate diagnosis, but they will never tell you how they reach this diagnosis,” Shen said. He believes that ChatGPT could work with the other programs to capture its rationale and observations.

“If they can talk, it has the potential to enable those systems to convey their knowledge in the same way as an experienced radiologist,” he said.

Tseng said he ultimately thinks ChatGPT can enhance medical practice in much the same way online medical information has both empowered patients and forced doctors to become better communicators, because they now have to provide insight around what patients read online.

ChatGPT won’t replace doctors. Tseng’s group will continue to test it to learn why it creates certain errors and what other ethical parameters need to be put in place before using it for real. But Tseng thinks it could make the medical profession more accessible. For example, a doctor could ask ChatGPT to simplify complicated medical jargon into language that someone with a seventh-grade education could understand.

“AI is here. The doors are open,” Tseng said. “My fundamental hope is, it will actually make me and make us as physicians and providers better.”

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I’m a parent with an active social media brand: Here’s what you need to check on your child’s social media right now | CNN

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If you follow me on Twitter or Instagram, you’ll know I wear a lot of hats: romance author, parent of funny tweenagers, part-time teacher, amateur homesteader, grumbling celiac and the wife of a seriously outdoorsy guy.

Because I’m an author with a major publisher in today’s competitive market, I’ve been tasked with stepping up my social media brand: participation, creation and all. The more transparent and likable I am online, the better my books sell. Therefore, to social media I go.

It’s rare to find someone with no social media presence these days, but there’s a marked difference between posting a few pictures for family and friends and actively creating social media content as part of your daily life.

With a whopping 95% of teens polled having access to smartphones (and 98% of teens over 15), according to an August Pew Research Center survey on teens, social media and technology, it doesn’t look like social media platforms are going away anytime soon.

Not only are they key social tools, but they also allow teens to feel more a part of things in their communities. Many teens like being online, according to a November Pew Research Center survey on teen life on social media. Eighty percent of the teens surveyed felt more connected to what is happening in their friends’ lives, while 71% felt social media allows them to showcase their creativity.

So, while posting online is work for me, it’s a way of life for the tweens and teens I see creating and publishing content online. As a parent of two middle schoolers, I know how important social media is to them, and I also know what’s out there. I see the good, the bad and the viral, and I’ve have put together some guidelines, based on what I’ve seen, for my fellow parents to watch for.

Here are eight questions to ask yourself as you check out your children’s social media accounts.

If you don’t, it’s time to start. It’s like when I had to look up the term “situationship,” I saw that ignorance is not bliss in this case. Or really any case when it comes to your children. Both of my children have smartphones, but even if your children don’t have smartphones, if they have any sort of device — phone, tablet, school laptop — it’s likely they have some sort of social media account out there. Every app our children wish to add to their smart devices comes through my husband’s and my phone notifications for approval. Before I approve any apps, I’ll read the reviews, run an internet search and text my mom friends for their experience.

Most tweens and teens use social media for socializing with local friends.

If I’m still uncertain about an app, I’ll hold off on approving it until I can sit down with my children and ask them why they want it. Sometimes just waiting and forcing a short discussion is enough to convince them they no longer want it. In our household, I avoid any apps that run social surveys, allow anonymous feedback or require the individual to use location services.

If you don’t have your family phone plan all hooked together with parental controls, I’d advise setting that up ASAP. Because different devices and apps have different ways to monitor and set up parental controls, it’s impossible to link all the options here. However, a quick search will give you exactly the coverage you are comfortable with, including apps that track your child’s text messages and changing the settings on your child’s phone to lock down at a certain time every night.

The top social media platforms teens use today are YouTube (95% of teens polled), TikTok (67%), Instagram (62%) and Snapchat (59%), according to the Pew Research Center survey on teens and social media tech. Other social media platforms teens use less frequently are Twitter, Reddit, WhatsApp and Facebook. Most notably, Facebook is seeing a significant downturn in teen users. This list isn’t exhaustive, however. I would check out your children’s devices for group chat apps (such as Slack or Discord) and also scroll through their sport or activity apps where group chat capabilities exist.

I’ve seen preteens and teens using their real names, birthdate, home address, pets’ names, locker numbers or their school baseball team. Any of that information could be used to identify your child and location in real life or using a quick Google search. All of that is an absolute “no” in our house.

I also tell my kids not to answer the fun surveys and quizzes that invite children to share their unique information and repost it for others to see. These can be useful tools for predators and people trying to steal your children’s identity.

What I do: I made the choice a long ago to withhold the names of my children and partner. It’s not an exact science, and I know some clever digging could find them. For my husband, it’s for the sake of his privacy and also the protection of his professionalism. Just because he’s married to a romance author doesn’t mean he should have to answer for my online antics, whatever they may be. For my children, I want to avoid anything embarrassing that could be traced back to them during their college application season.

Even if your children keep their social media profiles private (more on that later), their biographical information, screen name and avatar or profile picture are public information.

Do an internet search of your child’s name to see what’s out there and scroll through images to make sure there isn’t anything you wouldn’t want to be made public. In our household, I’ve asked my children to use generic items or illustrated avatars in their social media bios.

What I do: Parents who do have active social media accounts may want to do a search of their own names. When my first book was published in 2019, I did a search of my name and images and found many photos of my children that came directly from my social media pages. I hadn’t posted pictures of them, but I did use a family photo as my profile photo and those are public record. Once I deleted them, the photos disappeared.

Another “no” in our household is posting videos or photos of our home or bedrooms. Something that feels innocent and innocuous to your middle schooler may not feel that way to an adult seeking out inappropriate content.

I learned this from one of my children’s Pinterest accounts. My kid loves to create themed videos using her own photos and stock pictures, and she’s gained over 500 followers in a short period of time. She has completely followed our rules and I know, because I check and follow her myself — but it hasn’t stopped the influx of adult men following her content.

What we do: Over the holidays, I sat with her and went through each follower one by one and blocked anyone we decided was there for the wrong reasons. In the end, we blocked close to 30 adult men on her account. (I also know that some predators cleverly disguise themselves as children or teens, and we may not catch them all, but this is still a worthy exercise.)

We also talk to our children about how to protect themselves. They wouldn’t want those strangers standing in their bedroom; therefore, they don’t want to post videos of their bedroom or bathroom or classroom for strangers to view.

This is a tricky one for lots of reasons. For content creators to build their following, they need to remain public on social media. If your child is an entrepreneur or artist hoping to grab attention, locking down their account will prevent that from happening.

That said, a way around this is to have two accounts. First, a private one, locked down and only used for family and close friends, and second, a public one that lacks identifiers but showcases whatever branding the child is hoping to grow. I’ve come across some well-managed public accounts for children who have giant followings and noticed they are usually run by parents, who state that right in the profile. I like this. If your children want public profiles because they are hoping to catch the attention of a talent scout, having the accounts monitored by a responsible adult who has their best interest in mind is a healthy compromise.

This is the exception, however. Most tweens and teens today use their social media for socializing with local friends. The benefit of keeping their account as private (or as private as can be) is threefold. It allows them to screen who follows their content, thus preventing our Pinterest fiasco. It prevents strangers from accessing their content and making it viral without their permission. And it protects them from unsolicited contact with strangers.

Not all social media platforms have the option to make your account “private.” For example, YouTube has parental controls that can be adjusted at any time. TikTok and Instagram can be made private (which means users must approve followers) by making the change in the account settings. Once the account is private, a little padlock will show next to the username.

Snapchat allows users to approve followers on a case-by-case basis as well as turn off features that disclose a user’s location. Notably, Snapchat also informs users when another user takes a screenshot of their story, which is a feature other social media platforms don’t have yet.

Most group chat apps don’t have the ability to go private so much as they ask users to approve of follower requests. Take time to discuss with your children who they allow to follow them and what personal information they allow those followers to know. It’s also a great time to teach them the art of “blocking” those individuals who are unsafe or unkind.

My suggestion is to log in, scroll around and even ask your children to teach you about the platforms they use. Then, when they roll their eyes at you, go ahead and tell them about your first Hotmail email address and the way you picked the perfect emo playlist on your Myspace page … and when they’re bent over laughing, sneak a peek at their follower list. Trust me, it’ll be worth it.

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