Screen time affects a lot more in adolescents than originally thought. Also Read - Risk of Further Incitement of Violence: Twitter Permanently Suspends Trump's Account

According to a study conducted by the American Academy of Sleep Medicine, greater amounts of daily screen time are associated with more insomnia symptoms and shorter sleep duration among adolescents. Also Read - US House Passes Bill to Provide Americans USD 2,000 Stimulus Checks, Sends it to GOP-led Senate

Results showed that for social messaging, web surfing and TV/movie watching, insomnia symptoms, and sleep duration fully explained the association between screen-based activities and depressive symptoms. Also Read - Mystery Goes On: After Europe and US, Another Metal Monolith Crops Up in Poland

“Higher rates of depressive symptoms among teens may be partially explained through the ubiquitous use of screen-based activities, which can interfere with high-quality restorative sleep”, said researcher Xian Stella Li who conducted the analyses with collaborators at Lauren Hale, Orfeu Buxton, Soomi Lee, Anne-Marie Chang, and Lawrence Berger.

“These results suggest that parents, educators, and healthcare professionals could consider educating adolescents and regulating their screen time, as possible interventions for improving sleep health and reducing depression.” concluded principal investigator Lauren Hale.

She added, “We’re very interested to see whether the adverse influences of social media and screen use on sleep and mental health persist during the transition to adulthood.”

The study included data from 2,865 adolescents in the Fragile Families and Child Wellbeing Study’s teen survey. Participants had a mean age of 15.63 years, and 51 per cent were male.

Surveys included sleep characteristics: two insomnia symptoms (problems falling asleep, problems staying asleep), habitual weeknight sleep duration; and depressive symptoms.

Teens reported the typical daily time spent (hours) on four screen-based activities (social messaging, web surfing, TV/movies, and gaming).

The study appears in the online supplement of the journal Sleep.