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Alzheimer’s causes and risk factors

Scientists believe that a combination of genetic, lifestyle, and environmental factors influence when Alzheimer’s disease begins and how it progresses.

Related topics: Alzheimer’s and dementia, Alzheimer’s symptoms and diagnosis, Alzheimer’s treatment, Alzheimer’s caregiving

Alzheimer's Disease in People With Down Syndrome

Many, but not all, people with Down syndrome develop Alzheimer's disease when they get older. Learn about the connection between the two and how to participate in research studies exploring this relationship.
Middle aged adult with Down syndrome

What Causes Alzheimer's Disease?

How does Alzheimer's disease affect the brain? Read how genetics, environment, and lifestyle play a role in developing early- or late-onset Alzheimer’s.
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An official website of the National Institutes of Health