Video games don't impact teens' sleep

SAN FRANCISCO

A preliminary study out of Australia found playing a violent game before bedtime, such as 'Call of Duty' had only a mild effect on how long it takes a teen to fall asleep.

Those in the study group stayed awake only slightly longer than those who instead watched the documentary 'March of the Penguins.'

The study was published in the current issue of the Journal of Clinical Sleep Medicine.

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