Approximately four million elderly people in the United States have Alzheimer's disease.

It is not a new disease: Ancient Romans described in their writings similar syptoms.

Alzheimer's disease was named after a German physician named Alois Alzheimer.

A definite diagnosis of Alzheimer's disease is possible only when an autopsy reveals plaques and tangles.

Caring for a patient with Alzheimer's disease costs more than $47,000 a year, whether a person lives at home or in a nursing home.