Dr. Jack Daniels, PhD, Olympian, coach and author, speaks at the Saucony Step Into Minimalism event
Is Armstrong on the edge of going down?
A former teammate of perhaps the world's greatest cyclist, Lance Armstrong, says he used banned performance-enhancing substances with Armstrong to cheat in pro races, including the Tour de France, the sport's ultimate event. Scott Pelley reports.
Lance Armstrong, DRUGS-EPO Part 1: http://www.cbsnews.com/video/watch/?id=7366948n
World records smashed at 5th Brathay Trust Windermere 10 in 10 & Marathon