NOVA Season 47 Episode 4 Mysteries of Sleep 2020
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From fruit flies to whales, 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.
- Released: 2020-02-26
- Runtime: 55 minutes
- Genre: Documentary
- Stars:
- Director:
