Alzheimer’s Disease Fact Sheet

What is Alzheimer’s disease, what causes it, what are the symptoms, and how is it treated? Get answers to these questions and more in this NIA fact sheet.


What Is Alzheimer’s Disease?

Learn about Alzheimer’s, a brain disease that causes memory loss and other cognitive impairment. It’s the most common cause of dementia in older adults.


What Is Dementia? Symptoms, Types, and Diagnosis

Dementia is a loss of thinking, remembering, and reasoning skills. It is not a normal part of aging. Read about the different types of dementia and how it is diagnosed.


Preventing Alzheimer’s Disease: What Do We Know?

What can you do to prevent Alzheimer’s disease? Read the latest evidence for promising prevention strategies, including physical activity, blood pressure control, and cognitive training.


Frequently Asked Questions About Alzheimer’s Disease

Learn about Alzheimer’s disease in these FAQs from the National Institute on Aging.


What Do We Know About Diet and Prevention of Alzheimer’s Disease?

We don’t know for sure whether following a certain diet can help prevent Alzheimer’s dementia. Many studies are underway to see how food affects the aging brain.