Teens getting less sleep, activity, and more screen time

Only 1 in 20 U.S. adolescents is meeting national recommendations for sleeping, physical activity, and screen time, according to new research by The University of Texas Health Science Center at Houston (UTHealth).



The study, published today in JAMA Pediatrics, also revealed differences in the findings between females and males, with just 3 percent of girls reaching all three guideline targets, compared to 7 percent of boys.


It is recommended by the National Sleep Foundation that children ages 14-18 sleep eight to 10 hours a night. The U.S. Department of Health and Human Services recommends at least an hour of moderate or vigorous physical activity daily, and limiting screen time to less than two hours.

The research involved nearly 60,000 American high school students, using data from the 2011-2017 Youth Risk Behavior Surveillance Survey.


The combined effect on children's overall health could be considerable in terms of their physical health, emotional well-being, and academic performance. The study further examined other attributes of the child, age, race or ethnicity, weight, and mental health, and how these were linked to sleep, physical activity, and screen time.


Findings showed older teenagers, non-Hispanic black children, Asian children, those classified as obese, and those who showed signs of depression were the least likely to meet all recommendations when compared to their counterparts.


The paper calls for more research to better understand the relationship among sleep, physical activity, and screen time by exploring the effect these behaviors have on each other and their wider implications over time. It also urged doctors to ask patients about these behaviors, provide them and their parents with advice, and make any necessary specialist referrals.


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