nova-pbs 19 hours ago
public broadcaster #Psychology & Manipulation

NOVA | Mysteries of Sleep | Full Special

Virtually every animal sleeps. But why? Why do we need to spend nearly a third of our lives in such a defenseless state?

Scientists are peering more deeply into the sleeping brain than ever before, discovering just how powerful sleep can be, playing a role in everything from memory retention and emotional regulation to removing waste from our brains. So why are we getting so little of it?

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