Summary: <p>Some people run long distances. Why do they do this? What happens to the body when it can't go anymore? Why are some people addicted to it?</p> <p>We answer most of these questions through the personal experiences of ultra-runner, Jordan Wirfs-Brock, and also hear from experts in physiology and medicine along the way. Enjoy!</p> <p><img alt="" src="http://imgur.com/oxILvDM"></p>
