Explore the mystery of sleep
Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?
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.
Watch NOVA Wednesday December 2 at 9:30pm on WITF. Watch episodes of NOVA on-demand through the PBS Video app and through our website. Older episodes are only available to WITF Passport members. Learn more…