University of California, San Francisco investigators measured smartphone app activity during school hours among US ...
U.S. adolescents spend more than one hour per day on smartphones during school hours, with social media accounting for the ...
Teens spend more than an hour on smartphones on average during school, according to a study published Monday in the Journal ...
Social media apps like Instagram, TikTok and Snapchat accounted for the greatest share of smartphone use during school hours, ...
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Teens Spend an Hour on Their Smartphones at School
"Even during school hours, smartphones remain a major part of adolescents' daily lives," Nagata added. "Smartphones can ...
Teens spend more than an hour on smartphones on average during school, according to a study published Monday in the Journal ...
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