Bright light suppresses melatonin in kids

By Sarah Wiedersehn
Updated March 6 2018 - 11:46am, first published 11:44am
Exposure to bright light before bedtime can lead to sleep problems for children.
Exposure to bright light before bedtime can lead to sleep problems for children.

One hour of exposure to bright light before bedtime almost completely shuts down the production of the sleep-promoting hormone melatonin in preschoolers and keeps it suppressed for at least 50 minutes, a US study has found.

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