Study has shown that people who worked out regularly were more physically active and easily aroused than counterparts that lacked any form of physical exercise. Just 20 minutes on the treadmill is sufficient; after all, it's important to remember that exercise increases blood flow to just about every part of your body. On a plus side, exercise is known to release endorphins the feel good hormone. This, in turn, is fabulous for enhancing your mood and busting fatigue.