David Epstein is an award-winning senior writer for Sports Illustrated, where he covers sports science, medicine, and Olympic sports. His investigative pieces are among Sports Illustrated¿s most high-profile stories. An avid runner himself, he earned All-East honours on Columbia University's varsity track squad. This is his first book.

David Epstein is an award-winning senior writer for Sports Illustrated, where he covers sports science, medicine, and Olympic sports. His investigative pieces are among Sports Illustrated's most high-profile stories. An avid runner himself, he earned All-East honours on Columbia University's varsity track squad. This is his first book.