An estimated 5.1 million Americans have Alzheimer’s disease, according to an annual study by the Alzheimer’s Association, Chicago.
Of these, 4.9 million are age 65 and older. Another 200,000 are younger than 65.
AA projects that there will be 454,000 new cases of Alzheimer’s by 2010, up from an estimated 411,000 in 2000. That figure could rise to 615,000 by 2030 and to 959,000 by 2050.