It’s a well-known fact that people with Alzheimer's often have sleep problems. However, does it work in reverse? Is struggling to sleep a precursor for the degenerative disease? In a recent study, researchers observed a key role deep sleep potentially plays in maintaining brain health and protecting the brain against Alzheimer's. All the information on this subject can be heard on NPR’s Short Wave podcast “Solving the Sleep & Alzheimer’s Puzzle.” Listen to host Jon Hamilton talk with some of the most respected scientists who have a deep understanding and knowledge of Alzheimer’s and sleep.