Endurance Hour #117, Running with TEDTalks featuring Christopher McDougall and Dr. James O’Keefe Jr.  Mr. McDougall explores the mysteries of the human desire to run and Dr. O’Keefe Jr. talks about long distance running. Email Dave Erickson and Roger Thompson at EnduranceHour@gmail.com. Find us on Facebook and Twitter, key word “EnduranceHour†and subscribe via iTunes and/or Stitcher Smart Radio. Call anytime at 720-295-9890 (voice mail).