A new study published in the Journal of the American Medical Association passively tracked smartphone use of 640 adolescents who were about 15 years old. In general, teenagers spend about 8.5 hours a day on screen-based entertainment, and whether that is “good” or “bad” ultimately comes down to what they would be doing instead. For instance, looking at screens instead of sleeping is much worse than screens instead of, say, shopping. The new study in JAMA finds that screens are definitely eating into school time. The average person in the study spent 1.16 hours using their smartphone during school hours, with social media taking up 30 minutes of that time and games and videos taking another 15 minutes.
Justin Jackson, Phys.org
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