Difficulty sleeping affects many people with Alzheimer's: sleeping longer than usual, trouble falling asleep or staying asleep, or sleeping during the day and being awake at night. For those who do not have Alzheimer's, regularly getting inadequate sleep can increase your risk for the disease.

What does research tell us about the link between insomnia and Alzheimer's? And are there steps we can take to help manage the risk created by poor sleep?

Host Meryl Comer speaks with two experts on these questions:

•  David Holtzman, MD, of Washington University in St. Louis has led studies linking sleep disorders to greater amyloid-beta and tau accumulation in the brain and thus to an increased risk of developing Alzheimer's.
• Kristine Yaffe, MD, of the University of California, San Francisco, is an expert on populations studies as well as sleep and Alzheimer’s disease.

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