(HealthDay) -- As you age, it's important to get plenty of exercise to keep your body in shape. But it's equally important to exercise your mind.
The Cornell University Center for Aging Research and Clinical Care says you should remember the phrase, "Use it or lose it." There's growing evidence that stimulating your mind can improve your memory as you age and, perhaps, even help ward off Alzheimer's disease.
So, read a book, play bridge or get out that crossword puzzle. They all can help you stay sharp.