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.
Episode Duration: 56 minutes and 46 seconds
Episode Number: 4704
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PBS' premier science series helps viewers of all ages explore the science behind the headlines.
Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.
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