Chances are you're pretty familiar with the visible ways exercise does your body good¡ªsleeker legs, a firmer backside, flatter abs¡ªbut what about the benefits you can't see? Yes, it reduces your risk of heart disease and diabetes, but researchers have found that working out can also improve everything from your mood to your memory. Check out all the other ways an afternoon kickboxing class or stroll with your dog can perk up your day-in, day-out routine¡ªyou won't be able to put on your sneakers fast enough. .