Zekel Healthcare ( ZEHE ), Alzheimer’s is the most common form of dementia, primarily impacting older Americans, but also taking a toll on younger Americans who suffer from early-onset Alzheimer’s. As brain cells degenerate, memories and mental function are lost and lives are cut short.More than five million Americans suffer from Alzheimer’s. With the median age of the American population rising, the overall number of people suffering from Alzheimer’s is expected to grow nearly threefold to nearly 15 million Americans by 2050.Alzheimer's (AHLZ-high-merz) is a disease of the brain that causes problems with memory, thinking and behavior. It is not a normal part of aging.