Here's some good news for America's seniors: Dementia rates have dropped dramatically over the last decade or so, according to a new study.
An analysis of responses from a study of more than 10,000 people aged 65 and older found the prevalence of dementia dropped about 24 percent between 2000 and 2012.
The reasons for the decline aren't clear, researchers say. But two factors stand out: The participants in 2012 had more years of schooling than those in 2000; and chronic conditions such as high blood pressure and diabetes were being controlled more aggressively.
