Screen time is on the rise among children, with preschoolers spending an average of two hours daily in front of a screen.

In light of growing concern over the risks of screen exposure, researchers looked into the impact of screen use on behavior in preschool-aged children. What they found will surprise you.

Kids engaging in two or more hours of screen time per day were nearly 6 times more likely to have attention problems at age 5 compared to children with 30 minutes or less of daily screen time.

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What’s more, they had a 7.7-fold increased risk of meeting criteria for ADHD

Conversely, those who reported two or more hours a week of organized physical activity were less likely to experience mental health issues.

So while screen time may not be harmful in moderation, these results suggest that parents should limit their children’s screen use to minimize the risk of behavioral problems.