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Mysteries of Sleep

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. So why are we getting so little of it?

English
  • Originally Aired February 26, 2020
  • Runtime 55 minutes
  • Production Code 4704
  • Network PBS
  • Created December 14, 2020 by
    Administrator admin
  • Modified December 14, 2020 by
    Administrator admin