NPR | Staying Active Fends Off Alzheimer’s, Even In People Over 80.

Activity cuts the risk of Alzheimer’s disease and slows cognitive decline, even in the very old, according to a new study. There’s been plenty of evidence for the “use it or lose it” theory of brain capacity. But this study is one of the first to show that activity of all sorts benefits people over age 80, even if they’re not “exercising.” Continue.