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In some older women, bigger numbers on the scale may be linked to poorer mental function. Hi, I'm Dr. Cindy Haines, host of HealthDay TV.
Alzheimer's disease affects about 5.3 million Americans, most of them ages 65 and older, according to the Alzheimer's Association.
Because about one-fifth of our population will be over the age of 65 in a few decades, experts are trying to figure out which factors raise people's risk of dementia.