Runners high driven by endorphins - Propeller.com http://health.propeller.com/story/2008/03/06/runners-high-driven-by-endorphins German study prove that runners high is caused by an increased release of endorphins http://media-images.nscpcdn.com/media/ns-logo-rss.gif Propeller.com - Runners high driven by endorphins http://www.propeller.com en-us Copyright 2006-2007 Propeller Propeller.com