Scientists have long studied the relationship between sleep and the brain, and why poor sleep is linked to neurological diseases like Alzheimer's. NPR science correspondent Jon Hamilton talks to host Regina G. Barber about the brain's washing system and the particular sound researchers have found that seems to turn it on in mice.

Read Jon's full piece here.

Interested in more science about the brain? Email us at shortwave@npr.org.

Learn more about sponsor message choices: podcastchoices.com/adchoices

NPR Privacy Policy