Basics of Alzheimer's Disease and Dementia
Alzheimer’s disease is an irreversible, progressive brain disorder that slowly destroys memory and thinking skills and, eventually, the ability to carry out the simplest tasks. It is the most common cause of dementia in older adults. While dementia is more common as people grow older, it is not a normal part of aging.
In the News
Tau tangles linked to smaller brain regions and falling cognitive test scores in healthy older adults
Breakdowns in mitochondrial housekeeping provide another clue to Alzheimer's culprit
Researchers map how Alzheimer's pathology spreads across brain networks
Articles
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.
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.
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.
Frequently Asked Questions About Alzheimer's Disease
Learn about Alzheimer’s disease in these FAQs from the National Institute on Aging.
