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Alzheimer’s disease is a degenerative brain disease and the most common form of dementia. Dementia is not a specific disease. It's an overall term that describes a group of symptoms.
Your memory often changes as you grow older. But memory loss that disrupts daily life is not a typical part of aging.
Learn the Signs
See how the brain works and how Alzheimer's disease affects it.
Take the Tour
Approximately 12-18% of people age 60 or older are living with MCI. People with MCI may go on to develop dementia, while others will not.
Take our free, online course Understanding Alzheimer's and Dementia to learn about stages, risk factors, treatments and more.
Take the Course
Our annual report reveals the burden of Alzheimer’s and dementia on individuals, caregivers, government and the nation’s health care system.
Researchers believe there is not a single cause of Alzheimer's disease. It likely develops from multiple factors, such as genetics, lifestyle and environment.
Dementia is an overall term that describes a group of symptoms associated with a decline in memory and thinking skills.
Alzheimer's is a type of dementia that affects memory, thinking and behavior. Symptoms eventually grow severe enough to interfere with daily tasks.
Learn what to expect when visiting a doctor for symptoms of Alzheimer's disease.
Alzheimer's disease typically progresses slowly in three general stages.
Read about the benefits of receiving an early diagnosis.
There's no cure for Alzheimer’s, but one drug may delay its decline, and there are treatments that may help symptoms.
Learn how the Alzheimer's Association is committed to accelerating the global effort to eliminate Alzheimer's disease and other dementias.
A worldwide quest is under way to find new treatments to stop, slow or even prevent Alzheimer's.
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