NOVA
Season 47 Episode 4 - Mysteries of Sleep
7.0 ?
1974
Documentary
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.
Episodes in Season 47
1
Polar Extremes
55 min
2
Dog Tales
55 min
3
Cat Tales
55 min
4
Mysteries of Sleep
55 min
NOW PLAYING
5
Cuba's Cancer Hope
55 min
6
The Truth About Fat
55 min
7
Decoding COVID-19
55 min
8
Eagle Power
55 min
9
Human Nature / Gene-Editing Reality Check
90 min
10
Secret Mind of Slime
55 min
11
A to Z: The First Alphabet
55 min
12
A to Z: How Writing Changed the World
55 min
13
Nature's Fear Factor
55 min
14
Touching the Asteroid
55 min
15
Can We Cool the Planet?
55 min
16
Saving Notre Dame
55 min
