UW Today | Is it Alzheimer's, Dementia or Something Else? Intelihealth.com Alzheimer's disease (also referred to as dementia of the Alzheimer's type) affects roughly 5 million Americans and more than 35 million people around the world. It is by far the most common dementia. About 50% to 56% of people with dementia are ... Good News on the Alzheimer's Prevention Front Drug may delay onset of dementia |