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Mysteries Of Sleep

Season 47, Episode 4 of 19

Like virtually every other animal, humans need sleep to survive. But why? Scientists peer into the brain to see what happens while we snooze and understand the powerful role that sleep - or lack of it - plays in memory, trauma and emotion regulation.

Previously Aired

Day
Time
Channel
4/9/2020
8 a.m.
4/9/2020
noon
5/21/2020
3 p.m.
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