Physical activity may ward off Alzheimer's.

Encouraging results from brain researchers at Washington University reveal that physical activity may delay or prevent the onset of Alzheimer's in individuals who are genetically predisposed to it. In a small, obeservational study (does not prove cause and effect) of people at a single study center who carried a specific genetic risk (APOE epsilon-4) were able to wipe out their excess risk by meeting the American Heart Association excercise recommendations, even after adjusting for confounding factors.

PositiveTip: How are you doing with your physical activity? Make sure you are meeting the guidlines daily.