Back to Show
NOVA
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.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By

Unlock with PBS Passport
53:31
Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas.

Unlock with PBS Passport
53:32
Meet one of the ocean’s most beautiful and destructive species: Lionfish.

53:47
Psychedelics are unlocking new ways to treat conditions like addiction and depression.

53:30
Is artificial intelligence making policing and courts fairer, or is it increasing bias?

Unlock with PBS Passport
53:43
A team tackles the restoration of iconic Notre Dame Cathedral.

Unlock with PBS Passport
53:31
Can innovative engineering projects save Venice?

53:33
Can innovative drugs and therapies finally end HIV?

53:43
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.

Unlock with PBS Passport
53:20
How could a single ship cause a major supply chain crisis around the globe?

53:16
Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.

53:30
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate

53:31
Explore great ancient Maya cities and why their inhabitants abandoned them.