Artificial blue light emitted by smartphone screens can disrupt our circadian rhythms, throwing off our natural sleep-wake cycles. This blue light hits our eyes and suppresses the production of melatonin, a hormone that helps induce drowsiness and regulate sleep. Since this hormone that makes us feel tired is not produced as it normally would when it’s dark, we may find it hard to fall asleep.

This is a video from the 2023 Brain Awareness Video Contest.

Created by Nurfaizatul Aisyah Ab Aziz and Siti Atiyah Ali.

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