Dementia is a general term that refers to a variety of brain disorders. Physical changes in the brain cause dementia. Learn more in this section about dementia, its impact on the brain, and how to keep your brain healthy.
What is dementia?
Dementia is an overall term for a set of symptoms that are caused by disorders affecting the brain.
Alzheimer's disease is not a normal part of aging.
Learn about the different types of dementia.