Dr. Jason Nagata
speaker
31 appearances
5 recordings
1 series
first heard Oct 2025
last heard 24 May
Dr. Jason Nagata’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 5 in all, peaking in May 2026 with 2.
Appearances
The study included more than 650 teens who downloaded an app on their smartphone, allowing researchers to passively monitor their phone use.
Study author Dr. Jason Nagata is a pediatrician at the University of California, San Francisco.
He says on average, teens spend more than 50 minutes on their phones between 10 p.m.
and 6 a.m.
on school nights.
And nearly half were on their phone at some point between midnight and 4 a.m.
He says 65% of weeknight screen time was spent on social media apps like TikTok, Instagram and YouTube.
A smaller share was spent on entertainment apps and video games.
The results appear in JAMA Pediatrics.
Ritu Chatterjee, NPR News.
The study included more than 650 teens who downloaded an app on their smartphone, allowing researchers to passively monitor their phone use.
Study author Dr. Jason Nagata is a pediatrician at the University of California, San Francisco.
He says on average, teens spend more than 50 minutes on their phones between 10 p.m.
and 6 a.m.
on school nights.
And nearly half were on their phone at some point between midnight and 4 a.m.
He says 65% of weeknight screen time was spent on social media apps like TikTok, Instagram and YouTube.
A smaller share was spent on entertainment apps and video games.
The results appear in JAMA Pediatrics.
Ritu Chatterjee, NPR News.
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