Huffington Post | Dementia Rate Declines But Aging America May Halt The Trend CBS Local The study released Monday shows the rate of Alzheimer's disease and other dementias in adults aged 65 and up dropped to about 9 percent in 2012 from nearly 12 percent in 2000, continuing a decline noted in earlier research. Older adults with the most ... US dementia rates falling Declines In Dementia: Of Hearts And Minds |