Limiting children’s screen time linked to better cognition, study says

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(CNN) — Limiting kids’ recreational screen time to less than two hours a day, along with sufficient sleep and physical activity, is associated with improved cognition, according to a study published in The Lancet Child & Adolescent Health.

The study included about 4,500 US children ages 8 to 11 and measured their habits against the Canadian 24-Hour Movement Guidelines for Children and Youth. It found that 51% of the children got the recommended nine to 11 hours of uninterrupted sleep per night, 37% met the recreational screen time limit of two hours or less per day, while 18% met the physical activity recommendation of at least 60 minutes of accumulated physical activity a day.

Only 5% of the children in the study met all three recommendations; 30% met none at all.

On average, the participants slept 9.1 hours per night, had 3.6 hours of recreational screen time per day and hit the physical activity goal 3.7 days per week. (…)
 

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