BROADCASTS.com

b'I think as a species, we developed in such a way that when we actually spend a day working hard, working past the point of discomfort and working through pain. When we spend a day accomplishing something with the strength of our bodies we are rewarded with a unique sense of satisfaction that cannot come from any other source. It releases endorphins that make you feel awesome. I think, a special kind of endorphin you can\\u2019t get anywhere else.'