>From one of the TED talks, a series of amazing scientific facts about the human smile. Did you know that your smile can predict how long you live, or the length and happiness of your marriage? Did you know that one smile produces the same level of brain pleasure center "feel good" activity as 2000 bars of chocolate? And smiling doesn't make you fat. :-)
What these facts suggest to me is that adding a few smiles to your day will probably do more to expand the level of happiness in the world -- both yours and others -- than any amount of buttbouncing. http://www.youtube.com/watch?v=U9cGdRNMdQQ
