Approximately 5 million Americans have Alzheimer's disease. And millions more who love them are affected by it. Alzheimer's is a type of dementia that causes the brain's nerve cells to die in areas that are vital to memory and mental abilities.
The cause of Alzheimer's is not yet known. For most people, Alzheimer's begins after age 60. Although less common, it can occur at younger ages.
Learn about Alzheimer's — signs and symptoms, stages of the disease, and benefits of early diagnosis.
Alzheimer's Signs & Symptoms
Find out whether what you are seeing might be Alzheimer's. Learn how it compares to other types of dementia, or normal aging.
Stages of Alzheimer's
Alzheimer's is a disease that gets worse over time. Learn how it progresses through the mild, moderate, and severe stages.
Benefits of Early Diagnosis
There is currently no cure. But by having a doctor diagnose the disease early, when you first start noticing symptoms, you may slow the progression of symptoms with treatment.
Types of Dementia
Alzheimer's is just one type of dementia among many. Learn more about dementia.