We know that people with Alzheimer’s often have sleep problems.

But does it work the other way? Do problems with sleep set the stage for this degenerative brain disease?

NPR correspondent Jon Hamilton introduces us to some scientists looking into that connection in this updated report on the key role deep sleep may play in maintaining brain health and protecting the brain against Alzheimer’s.

This episode was edited by Gisele Grayson, and fact-checked by Ariela Zebede. The original episode was edited by Viet Le.

Short Wave Podcast

It’s science for everyone, using a lot of creativity and a little humor. Join host Maddie Sofia for science on a different wavelength.