In case parents needed another reason to police their children's screen time, new research shows that social media use is hurting preteens' memory and reading skills.

A robust body of research has found an association between excessive use of social media and increased risk of depression, anxiety , sleep disturbance, impulsivity and body image among children and teens. Former U.S. Surgeon General Dr. Vivek Murthy was concerned enough about high rates of social media use among young people that last year he called for warning labels on social media platforms about the associated mental health harms. MORE: Many people with chronic pain turn to comfort eating, but there are ways to avoid it

The new study , published Monday in the Journal of the American Medical Association, adds

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