There is no cure for Alzheimer's disease. Life expectancy often depends on how quickly the symptoms progress. The period of time between diagnosis and the person dying can be anything from 18 month - 15 year but is usually 7-10 years. Most people with Alzheimer's disease need full-time care within 5-10 years. Often the cause of death in a person with Alzheimer's disease is another illness e. g. an infection or stroke.
Attribution: BUPA