Alzheimer's is the most common form of dementia. It causes problems with memory, thinking and behavior. Talk to a dementia expert with our free 24/7 Helpline. Get confidential support, crisis …

Mar 3, 2026 · Alzheimer's disease is the most common cause of dementia. Alzheimer's disease is the biological process that begins with the appearance of a buildup of proteins in the form of amyloid …

The term senile dementia of the Alzheimer type (SDAT) was used for a time to describe the condition in those over 65, with classical Alzheimer's disease being used to describe those who were younger.

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.

Feb 19, 2025 · Alzheimer’s disease is the most common cause of dementia. It slowly causes permanent decline in your memory, thinking and ability to control and use your body.

Feb 9, 2026 · Alzheimer's disease (AD) is a loss of brain functions that worsens over time. It is a form of dementia. Alzheimer's disease damages the brain's intellectual functions. Short-term memory often …

Learn about common types of dementia, signs and symptoms, and risk factors. Learn how to recognize the early signs of Alzheimer's disease. Learn what early signs and symptoms of dementia to look out …

Jan 21, 2026 · Alzheimer’s disease is a brain disorder that slowly destroys memory and thinking skills and, eventually, the ability to carry out the simplest tasks. People with Alzheimer’s also experience …

Support, services & education for individuals, families & caregivers affected by Alzheimer’s disease & related dementias. Research for treatment and a cure.

May 1, 2026 · Alzheimer disease is characterized by a progressive and irreversible decline in memory and deterioration of other cognitive abilities. Learn more about the symptoms, causes, and treatment …