NOVA - Season 47 Episode 4 : Mysteries of Sleep
Watch Now Download
Poster NOVA - Season 47 Episode 4 : Mysteries of Sleep 2025

NOVA - Season 47 Episode 4 : Mysteries of Sleep

7/10 by 129 users

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: 1974-03-03
  • Runtime: 00:55:14 minutes
  • Genre: Documentary
  • Network: PBS
  • Stars:

Series Recommendations