In 1906, Dr. Alzheimer noticed changes in the brain of a woman who had died of an unusual mental illness. Within the brain tissue, he found abnormal clumps and tangled bundles of fibers, which are now considered classic signs of Alzheimer's disease.
Scientists believe that up to 4.5 million Americans suffer from Alzheimer's disease. The disease usually begins after age 60, and the risk of developing this condition goes up with age. While people may get the disease at a younger age, it is much less common. There are a few different forms of Alzheimer's treatment that can help with symptoms, but there currently is no cure for the disease.
(Click Alzheimer's Disease for more information about the symptoms, diagnosis, and treatment of this disease. You can also click on any of the links in the box to the right for more specific information.)