What is Alzheimer’s disease?

Alzheimer’s disease is not a normal part of aging. Alzheimer’s disease is an irreversible, progressive brain disorder that slowly destroys memory and thinking skills over time. Alzheimer’s is the most common cause of dementia in older adults, with symptoms appearing in the mid-60s. The most common early symptom of Alzheimer's disease is difficulty remembering newly learned information. Approximately 5 million people are living with Alzheimer’s disease in the United States.

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What is dementia?

Dementia is a term that describes the symptoms associated with a decline in memory or other thinking skills. It is not a disease. There are many causes of dementia, but Alzheimer’s disease is the most common and accounts for 60 to 80 percent of cases. The second most common cause of dementia is Vascular dementia, which occurs after a stroke.

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