All you have to do is watch the news to know how important it is to stay in shape. In the short term, ramping up your fitness can give you more energy, improve the quality of your sleep, boost lung capacity, and relieve stress — not to mention help you work on that six-pack. The lasting benefits are even more impressive. An ever-growing body of evidence suggests that exercise strengthens bones, reduces joint pain and blood pressure, and even helps ward off some types of cancer. Plus, new research shows that regular workouts may help your mind stay nimble as you age. Want to see these and other benefits in the years ahead? Update your exercise routine now with help from the experts.