Today's podcast is the third of our Olympic themed podcasts.  One of the great Exercise Physiologists joins us today - Dr. Ed Coyle from the University of Texas.  Dr. Coyle is with us in advance of the London Olympic Marathon to talk about whether a human will ever run a sub-2 hour marathon.  Dr. Coyle also talks about his past work with Lance Armstrong measuring his exercise capacities.  This is a fun conversation with one of the best physiologists of our time.

The London Olympics is just around the corner and of course, and with all of the performances and stories that will happen there, David Epstein from Sports Illustrated is with us today to give us a heads-up as to what he thinks will be the intriguing stories of these Olympics.  Mr. Epstein has been with us for previous podcasts (video here, here, here, and here!) and I appreciate his '30,000 foot' view of sports and the interesting stories in sports medicine.