We've all heard about a "runner's high," but there are plenty of other ways to achieve that feeling. Dance. Play a sport. Work out as hard as you can. Take a walk so your stress will take a hike. Moving your body releases endorphins, the quintessential feel-good chemicals found in your brain. How endorphin release is triggered by exercise is somewhat of a controversial science because researchers don't know if it is caused by the positive emotion felt upon meeting a physical challenge or from the exertion itself. Either way, physical motion can provide a rush of good energy that can lift a mood, be it anxiety or mild depression, and it's a good way to keep healthy.