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Jason Nagata, MD

@jasonmnagata.bsky.social
148 followers 45 following 173 posts

Pediatrician • Adolescent Medicine • Associate Professor @UCSF • Eating Disorders, Screen Time, Social Media Research

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Jason Nagata, MD @jasonmnagata.bsky.social · 30/09/2026
🗣️ New @ucsfchildrens.bsky.social review in Current Pediatrics Reports! Emerging research suggests problematic patterns of GenAI use may interact with and amplify preexisting psychiatric vulnerabilities across a range of adolescent mental health outcomes. 🔗 Read: tinyurl.com/GenAIMH
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Tim Piatkowski @piatkowskitim.bsky.social · 28/09/2026
Our original @addictionjournal.bsky.social Opinion & Debate sparked thoughtful responses. Our final comment looks at where we go next as #peptide markets evolve. @jasonmnagata.bsky.social @drsuzinielsen.bsky.social @ucsfchildrens.bsky.social @monashaddiction.bsky.social doi.org/10.1111/add....
doi.org
Where next for human enhancement and harm reduction? From steroids to peptides
Click on the article title to read more.
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Jason Nagata, MD @jasonmnagata.bsky.social · 14/09/2026
🗣️ New @ucsfchildrens.bsky.social study in NeuroImage! 🎮 Among 5,686 adolescents in @theabcdstudy.bsky.social, higher gaming time was associated with lower cortical thickness and surface area across several brain regions. 🔗 Read here: tinyurl.com/gamingCM
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Jason Nagata, MD @jasonmnagata.bsky.social · 10/09/2026
📱 What does the evidence show about policies to protect teens on social media? New in @jamanetworkopen.com: We reviewed 39 publications across 6 policy approaches. 🔗https://tinyurl.com/SMPolicy26
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UCSF Benioff Children's Hospitals @ucsfchildrens.bsky.social · 03/09/2026
Tech companies design likes, notifications and algorithms to keep kids doomscrolling on social media, leading to potentially serious health effects. Dr. Jason Nagata explains why Meta’s $17.1 billion settlement may be a meaningful step toward making platforms safer. ucsfh.org/4i4ReQ5
ucsfh.org
Meta Settlement Puts Spotlight on Social Media Addiction in Kids
Jason Nagata, MD, MSc, discusses the health dangers of excessive social media use on the health of children, in response to an August 2026 announcement of a $17.1 billion settlement regarding children...
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UCSF @ucsanfrancisco.bsky.social · 29/08/2026
Meta just settled for $17.1 billion over concerns about children’s social media addiction. UCSF pediatrician and youth screen-time expert Jason Nagata, MD, MSc, explains what the changes could mean for kids’ health and what parents should watch for. ow.ly/74Nt50ZGPb3
ow.ly
Meta Settlement Puts Spotlight on Social Media Addiction in Kids
Jason Nagata, MD, MSc, discusses the health dangers of excessive social media use on the health of children, in response to an August 2026 announcement of a $17.1 billion settlement regarding children and teen addiction to their platform.
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Jason Nagata, MD @jasonmnagata.bsky.social · 17/08/2026
🗣️ New @ucsfchildrens.bsky.social study in @ajpcardio.bsky.social! Among a sample of adolescents in @theabcdstudy.bsky.social, greater neighborhood disadvantage was linked to lower LE8 cardiovascular health scores, driven mainly by behavioral factors. 🔗 Read here: tinyurl.com/NbhHeart
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Jason Nagata, MD @jasonmnagata.bsky.social · 10/08/2026
🗣️ New in the Journal of Adolescent Health! Medical infographics can help make adolescent health research easier to understand and share for teens, families, clinicians, and policymakers 🔗 Read here: tinyurl.com/JAHinfo
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UCSF Health @ucsfhealth.bsky.social · 05/08/2026
That toothbrush you've been side-eyeing after a cold? It's usually fine, Dr. @jasonmnagata.bsky.social says. He recommends replacing it after infections like strep throat & every 3-4 months, "or sooner if there are visible signs of wear.” ucsfh.org/4vSd9wV
usatoday.com
How often to change your toothbrush
People are claiming online that toothbrushes may harbor germs capable of making you sick. Are such fears valid or overstated? Here's what to know.
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Jason Nagata, MD @jasonmnagata.bsky.social · 03/08/2026
🗣️ New @ucsfchildrens.bsky.social study in @ajpmonline.bsky.social! 🧠Adolescents in the low-to-moderate and moderate-to-high problematic social media use trajectories had lower cognitive performance 🔗 Read here: tinyurl.com/socmind @theabcdstudy.bsky.social
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ucsf-ihps.bsky.social @ucsf-ihps.bsky.social · 31/07/2026
FDA voted to let compounding pharmacies make BPC-157, TB-500 & other gray-market peptides despite agency scientists safety objections. Piatkowski, Ganson & @jasonmnagata.bsky.social flagged the youth-use risks in May, Lancet Child Adolesc Health. www.nytimes.com/2026/07/25/o...
nytimes.com
Opinion | The Coming Peptide Free-for-All
Welcome to the new Wild West of peptides.
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Jason Nagata, MD @jasonmnagata.bsky.social · 27/07/2026
🗣️ New @ucsfchildrens.bsky.social study in @annalsofepi.bsky.social! Among 10,735 adolescents in @theabcdstudy.bsky.social, we found that adolescents with increasing social media use are more likely to experience greater eating disorder symptoms. 🔗 Read here: tinyurl.com/EDTraj
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Jason Nagata, MD @jasonmnagata.bsky.social · 20/07/2026
🗣️ New @ucsfchildrens.bsky.social study in @jamanetworkopen.com! Among 11,286 adolescents in @theabcdstudy.bsky.social Study: ✔️ Within-person elevations in problematic social media use were associated with higher ADHD symptoms the following year during mid-adolescence 🔗 tinyurl.com/psmuadhd
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Jason Nagata, MD @jasonmnagata.bsky.social · 15/07/2026
🗣️ New @ucsfchildrens.bsky.social commentary in Journal of Adolescent Health! Our 8-week rotation model gives medical students exposure to adolescent health research and the chance to collaborate with interdisciplinary faculty, mentors, and peers across institutions. 🔗 tinyurl.com/AdolRes
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Jason Nagata, MD @jasonmnagata.bsky.social · 02/07/2026
🗣️ New @ucsfchildrens.bsky.social study in Journal of Adolescent Health! Parental allowance of: 🛌 Bedroom screen use 🎁 Screen use as a reward 🍴Mealtime screen use …was associated with higher odds of cyberbullying victimization 🔗 Read here: tinyurl.com/cybmedia @theabcdstudy.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 30/06/2026
🗣️ New @ucsfchildrens.bsky.social study in Acta Paediatrica! 📱How parents manage devices may shape early adolescent screen use 1 year later 🔗 Read here: tinyurl.com/e5upves6 @theabcdstudy.bsky.social
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UCSF Benioff Children's Hospitals @ucsfchildrens.bsky.social · 24/06/2026
As school routines disappear, screen time surges, often at the expense of sleep, exercise and real-world friendships, Dr. Jason Nagata says. To help combat overuse, he suggests introducing fun alternatives, a family media plan and modeling healthy screen use. ucsfh.org/4eA03hm
ucsfh.org
'Toy Story 5' gets at something very real: It's hard to keep kids off screens in summer
Kids' screen use goes way up in the summertime. And just as the movie Toy Story 5 portrays, that can be problematic for children. Here are tips for parents to help their kids manage screens and have f...
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Jason Nagata, MD @jasonmnagata.bsky.social · 25/06/2026
🗣️ New @ucsfchildrens.bsky.social study in Academic Pediatrics! Cyberbullying trajectories → poorer academic outcomes in adolescents in @theabcdstudy.bsky.social 🔗 Read here: tinyurl.com/yc3pmw4x @ucsfhealth.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 18/06/2026
🗣️New @ucsfchildrens.bsky.social study in Pediatric Research! Each additional hour spent on: 📺 TV/videos 🎮 Video games 📱 Social media …was linked to a higher likelihood of poor diet quality (e.g., less fiber intake and more added sugar intake) 🔗 Read here: rdcu.be/fn2Tj @socpedresearch.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 15/06/2026
🗣️ New viewpoint in @jama.com led by @piatkowskitim.bsky.social! 💉 Illicit injectable peptides are increasingly promoted online for enhancement, raising concerns about youth exposure, limited safety evidence, and regulatory gaps. 🔗 Read here: tinyurl.com/jamapeptides
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UCSF Benioff Children's Hospitals @ucsfchildrens.bsky.social · 03/06/2026
More than 1/2 of U.S. teens use their phones after midnight instead of sleeping, a study finds. Regular late-night phone use "can interfere with the sleep they need to learn and perform at their best at school the next day,” Dr. @jasonmnagata.bsky.social tells @people.com. ucsfh.org/4tWs1cC
ucsfh.org
More Than Half of U.S. Teens Are Losing Critical Sleep Due to Smartphone Use After Midnight
More than half of U.S. adolescents are losing crucial sleep to smartphone use between the hours of 12:00 a.m. and 4:00 a.m., according to a new study. Participants in the study were most likely to use...
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Jason Nagata, MD @jasonmnagata.bsky.social · 10/06/2026
🗣️New @ucsfchildrens.bsky.social study in The American Journal of Psychiatry! 📱Longitudinal research shows that early-onset, rapid increasing social media use may be associated with future substance experimentation. 🔗 To learn more, visit: tinyurl.com/fdwwu9tm
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Reposted by Jason Nagata, MD
JAMA Pediatrics @jamapediatrics.com · 19/05/2026
Adolescents in a national cohort used smartphones an average of 50 minutes on school nights, mostly for social media, with about half using devices during midnight hours, raising concerns for sleep disruption. @jasonmnagata.bsky.social ja.ma/42EVg8X
JAMA Pediatrics "Research Letter: Smartphone Use on School Nights in the Adolescent Brain Cognitive Development Study" by Jason M. Nagata, MD@1; Kristen E. Kim, MPH@1; Alicia W. Leong, MD@1,2, Published Online: May 18, 2026.
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Jason Nagata, MD @jasonmnagata.bsky.social · 19/05/2026
📣 New @ucsfchildrens.bsky.social study in @jamapediatrics.com! 📱Adolescents spent an average of 50 minutes using a smartphone during school nights 🔗 Read here: tinyurl.com/sep3rnw4
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Jason Nagata, MD @jasonmnagata.bsky.social · 14/05/2026
🗣️ New @ucsfchildrens.bsky.social study in Current Psychiatry Reports! 📱Among adolescent boys and young men, exposure to appearance-focused and manosphere content is linked to body dissatisfaction, risky behaviors, and harmful masculinity norms. 🔗 Read here: rdcu.be/fiCsc
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Tim Piatkowski @piatkowskitim.bsky.social · 09/05/2026
New in @lancetchildadol.bsky.social Kyle + @jasonmnagata.bsky.social + I discuss the growing use of injectable synthetic peptides & outline priorities for clinicians, regulation, and prevention. @uoft-fifsw.bsky.social @ucsfchildrens.bsky.social @UQ doi.org/10.1016/S235...
doi.org
Redirecting
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JAMA @jama.com · 01/05/2026
Med News: A major meta-analysis has found that digital media use, particularly social media, is consistently linked to worse youth mental health and development. ja.ma/4ueqrU0
ja.ma
Social Media Linked to Poorer Youth Mental Health
This Medical News article discusses a study linking digital media—particularly social media—use to consistent risks for children’s mental health and development.
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Jason Nagata, MD @jasonmnagata.bsky.social · 30/04/2026
Struggling with phone or social media use? Try a family media plan: • No screens in the bedroom at night, and turn phones off • Keep mealtimes screen-free • Model healthy habits Grateful to @nytimes.com for featuring our @ucsfchildrens.bsky.social research. www.nytimes.com/2026/04/30/t...
nytimes.com
Struggling With Phone Addiction? Try These Remedies.
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Jason Nagata, MD @jasonmnagata.bsky.social · 27/04/2026
🗣️ New @ucsfchildrens.bsky.social study in @amjpublichealth.bsky.social 📱Online masculine content is a spectrum, from fitness & mental health communities to the “manosphere.” Impacts span 🤝 relationships, 🏥 health, and 💪 fitness, with risks and benefits. 🔗 tinyurl.com/4etm5xk9
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Jason Nagata, MD @jasonmnagata.bsky.social · 07/04/2026
📣 New @ucsfchildrens.bsky.social study! 📱Higher screen time and lower daily step count associated with higher risk of elevated BMI in early adolescence 🔗 Read here: tinyurl.com/584ems5j @ucsf-ihps.bsky.social @ucsfhealth.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 31/03/2026
🗣️ New @ucsfchildrens.bsky.social study in AJPM Focus! 🫀 In this national sample of early adolescents, cardiovascular health was characterized among U.S. early adolescents using the American Heart Association’s Life’s Essential 8 metric. 🔗 To learn more, visit: tinyurl.com/LE8adolesc
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Jason Nagata, MD @jasonmnagata.bsky.social · 25/03/2026
🗣️ New @ucsfchildrens.bsky.social study in NeuroImage! 🧠 Greater daily social media use was associated with lower cortical thickness in a wide array of cortical regions, including the prefrontal cortices, and temporal, occipital, and parietal lobes 🔗 Read here: tinyurl.com/abcdbrain
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Jason Nagata, MD @jasonmnagata.bsky.social · 23/03/2026
🗣️ New @ucsfchildrens.bsky.social study in @lancetrh-americ.bsky.social! 📱🧠 Increasing social media use among early adolescents associated with lower cognitive performance 2 years later 🔗 Read here: tinyurl.com/socmedmem
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Tim Piatkowski @piatkowskitim.bsky.social · 12/03/2026
New in @addictionjournal.bsky.social w @jasonmnagata.bsky.social & @drsuzinielsen.bsky.social Our new paper argues it’s time to rethink policy and health responses for ppl who use steroids. @uqchsr.bsky.social @ucsfchildrens.bsky.social @monashaddiction.bsky.social doi.org/10.1111/add....
doi.org
What anabolic–androgenic steroids reveal about the limits of current harm reduction models
Background Harm reduction has largely been shaped by responses to psychoactive drug use where the most urgent harms are acute. These models focus on overdose, blood-borne viruses, and rapid-onset to...
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Jason Nagata, MD @jasonmnagata.bsky.social · 09/03/2026
📣 New @ucsfchildrens.bsky.social study in BMC Public Health! 📱Higher recreational screen time and lower daily step count associated with higher cardiovascular disease risk in early adolescence 🔗 Read here: tinyurl.com/n5w9hwc7 @ucsf-ihps.bsky.social @ucsfhealth.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 02/03/2026
🗣️New @ucsfchildrens.bsky.social study in Current Pediatrics Reports! Evidence suggests that video gaming may offer more than just entertainment for adolescents and young adults 🔗To learn more, visit: tinyurl.com/VGHealthAYA @ucsf-ihps.bsky.social @ucsfpsych.bsky.social @smahrteam.bsky.social
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Children and Screens @childrenandscreens.bsky.social · 27/02/2026
What is the impact of image-based content on the #BodyImage development of boys and young men? In this clip from #ScreenDeep, @jasonmnagata.bsky.social explains how idealized masculinity can trigger body image-related behaviors for young male social media users. Learn more: bit.ly/4gCALyq
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Jason Nagata, MD @jasonmnagata.bsky.social · 25/02/2026
📣 New @ucsfchildrens.bsky.social study in Eating and Weight Disorders! ⚖️ Eating disorder symptoms in early adolescence were prospectively associated with higher BMI percentile one year later among males 🔗 Read here: tinyurl.com/3w982hfr @ucsf-ihps.bsky.social @ucsfhealth.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 18/02/2026
🗣️New @ucsfchildrens.bsky.social study in the American Journal on Addictions! 📱Greater #socialmedia use associated with early adolescent #nicotine experimentation. Positive beliefs about smoking may influence this relationship. 🔗To learn more, visit: tinyurl.com/SMNicExp @ucsf-ihps.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 12/02/2026
🗣️ New @ucsfchildrens.bsky.social in @ajpmonline.bsky.social! 📱 Problematic #screen use in early adolescents is linked to #mental health and #behavioral health outcomes one year later 🔗To learn more, visit: tinyurl.com/PSUYouth @ucsfpsych.bsky.social @ucsf-ihps.bsky.social @ucsfhealth.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 27/01/2026
🗣️ New @ucsfchildrens.bsky.social study in BMC Research Notes! Dating app use associated with higher depressive symptom scores in adolescents ages 13-16. 🔗 Read here: tinyurl.com/DatingAppMH @ucsf-ihps.bsky.social
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The PRIDE Study @pridestudy.org · 16/01/2026
🚨 New Study Alert! 🚨 Check out the latest #ThePRIDEStudyResearch led by Drs. Jason Nagata, MD, MSc and Christopher D. Otmar, PhD: Screening for Eating Concerns in Cisgender Gay Men and Lesbian Women Using a Short, New Tool Read more at pridestudy.org/research/#nagata19.
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UCSF Benioff Children's Hospitals @ucsfchildrens.bsky.social · 12/01/2026
Kids spend ~70 minutes of the school day on their phones. But caregivers can help by modeling healthy screen time, Dr. @jasonmnagata.bsky.social says. Caregiver phone use is “one of the biggest predictors of adolescent phone use, or screen use in general,” he explains. ucsfh.org/49b2mGg
ucsfh.org
Kids are spending a lot of their school days on their phones | CNN
Adolescents spend an average of 70 minutes of their school days on their phones, new research finds. But parents can help suggest ways kids not use phones at school.
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Jason Nagata, MD @jasonmnagata.bsky.social · 12/01/2026
🗣️ New @ucsfchildrens.bsky.social study in @world-j-pediatr.bsky.social! Certain media parenting practices associated with reduced teen #videogame use @ucsf-ihps.bsky.social 🔗 Read here: tinyurl.com/VGParent
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JAMA @jama.com · 06/01/2026
Problematic social media or phone use was associated with increased smartphone time in school, especially on social apps, among US adolescents; disparities in use were observed by age, race, and household income. @jasonmnagata.bsky.social @ucsfchildrens.bsky.social ja.ma/4jv0N9y
Table from JAMA on smartphone use during school. "Table 1. Sociodemographic and Descriptive Characteristics of Study Sample (N = 640) (continued)" lists smartphone/screen use variables, number, mean, & median. "Problematic social media usee" is 636, 1.84, 1.50.
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JAMA Pediatrics @jamapediatrics.com · 06/01/2026
From @jama.com: Problematic social media or phone use was associated with increased smartphone time in school, especially on social apps, among US adolescents; disparities in use were observed by age, race, and household income. @jasonmnagata.bsky.social ja.ma/4sxtIOy
Table from JAMA on smartphone use during school. "Table 1. Sociodemographic and Descriptive Characteristics of Study Sample (N = 640) (continued)" lists smartphone/screen use variables, number, mean, & median. "Problematic social media usee" is 636, 1.84, 1.50.
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Jason Nagata, MD @jasonmnagata.bsky.social · 05/01/2026
🗣️ New @ucsfchildrens.bsky.social study in @jama.com! Adolescents spend an average of 70 minutes per day on smartphones during school hours, with social media apps accounting for the most use. 🔗 Read here: tinyurl.com/phnsch @ucsf-ihps.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 15/12/2025
📣 New @ucsfchildrens.bsky.social evidence review in Academic Pediatrics! 📱 Adolescents exposed to cyberbullying may experience sleep disturbances, with problematic social media use central to both 🔗 Read here: tinyurl.com/cybersleep @ucsf-ihps.bsky.social @ucsfhealth.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 11/12/2025
🗣️ New @ucsfchildrens.bsky.social study in Drug and Alcohol Dependence! 📱Greater #socialmedia use is associated with early adolescent #cannabis experimentation. Beliefs about cannabis may influence this relationship. 🔗 Read here: tinyurl.com/cannabisexp @ucsf-ihps.bsky.social
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Jason Nagata, MD @jasonmnagata.bsky.social · 08/12/2025
📣 New @ucsfchildrens.bsky.social study in @pediatricresearch.bsky.social! 💤 Among early adolescents, older age, racial/ethnic and sexual minority status, lower household income, and lower parental education were all associated with worse #sleep outcomes 🔗 Read here: tinyurl.com/socsleep
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