One in eight Americans who are 65 years old or older has Alzheimer's disease, according to the Alzheimer's Association's 2008 Facts and Figures Report. By 2030, due to the aging of our population, that number will have doubled to one in four. There's no cure, and no certain evidence that the current medications -- Aricept, Exelon, Razadyne and Namenda -- which are said to slow the course of the disease, really work.
