Alzheimer’s Disease may be one of the cruelest diseases because a sufferer seemingly “disappears” until the person they were — no longer exists. National Alzheimer’s Disease Month, each November, reminds us that over 5 million Americans suffer. Alzheimer’s Disease (AD), a form of dementia, impacts memory, thinking, and behavior. AD ranks as the sixth leading cause of death in the U.S. and the most common form of dementia in 60-80% of all diagnosed cases. Learn the symptoms, treatments, and latest research, as well as how you can help.