A panel convened by the National Institutes of Health says there's no sure way to prevent Alzheimer's disease or other forms of mental decline related to aging. The panel say it's possible that people can reduce their risk by exercising, staying mentally active, and watching their diets. But the evidence for that is pretty limited. Michele Norris talks to NPR's Jonathan Hamilton about the panel's findings.
Read about the findings in NPR’s health blog, Shots.