Memory difficulties and behavior changes can be early signs of Alzheimer's disease

- Over time, a person with Alzheimer's disease has trouble thinking, remembering, speaking, learning, making judgments, and planning.

- Persons suffering from Alzheimer's are often moody, restless, and sometimes mean.

- Alzheimer's disease affects almost all aspects of brain functioning, including personality, and the ability to perform the most basic activities of daily functioning.

Alzheimer's disease is a an irreversible brain disorder with no known cure.

The cause of Alzheimer's disease is not yet known.