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NOVA: Mysteries Of Sleep

Stream now or tune in Wednesday, March 3, 2021 at 9:30 p.m. on KPBS TV

A woman sleeping. Scientists peer into the brain to see what happens while we...

Credit: Courtesy of Tiffany Bryant/Shutterstock

Above: A woman sleeping. Scientists peer into the brain to see what happens while we snooze and understand the powerful role that sleep — or lack of it — plays in memory, trauma, and emotion regulation.

Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?

Like virtually every other animal, humans need sleep to survive. But why? On NOVA "Mysteries Of Sleep," scientists peer into the brain to see what happens while we snooze and understand the powerful role that sleep — or lack of it — plays in memory, trauma, and emotion regulation.

How Sleep Helps Children Learn and Remember New Words

To measure the brain’s ability to form completely new memories, researchers teach kids made-up words for novel objects.

Can Sleep Quality and Quantity be Boosted Using Sound?

A neurologist uses carefully-timed pulses of noise to boost the size of brain waves responsible for good-quality sleep—and potentially better memory.

Watch On Your Schedule:

This episode will be available for streaming simultaneously on all station-branded PBS platforms, including PBS.org and the PBS Video App, which is available on iOS, Android, Roku, Apple TV, Amazon Fire TV and Chromecast, for a limited time.

Extend your viewing window with KPBS Passport, video streaming for members supporting KPBS at $60 or more yearly, using your computer, smartphone, tablet, Roku, AppleTV, Amazon Fire or Chromecast. Learn how to activate your benefit now.

The program DVD is available for purchase at ShopPBS.org

NOVA: Mysteries Of Sleep: Preview

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.

Join The Conversation:

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