Alzheimer's Society factsheet 401: What is Alzheimer's disease?

What is Alzheimer's disease? is a factsheet from Alzheimer's Society. This factsheet explains what Alzheimer's disease is, the causes and symptoms, and how it is diagnosed. It also looks at the ways someone can care for a person with Alzheimer's. It will be helpful to people affected by Alzheimer's disease in England, Wales and Northern Ireland. Health and social care professionals may also find it useful.