For more on cognitive function and exercise, see "Do Exercise and Physical Activity Protect the Brain?" from Go4Life®, the exercise and physical activity campaign from the National Institute on Aging.
Some people may wonder what the difference is between physical activity and exercise. Physical activities are activities that get your body moving such as gardening, walking the dog and taking the stairs instead of the elevator. Exercise is a form of physical activity that is specifically planned, structured, and repetitive such as weight training, tai chi, or an aerobics class. Including both in your life will provide you with health benefits that can help you feel better and enjoy life more as you age.