Since the dawn of athletic competition during the original Olympic Games in Ancient Greece, athletes, as well as their coaches and trainers, have been finding innovative ways to gain an edge on their competition. Some of those performance-enhancement methods have been within the accepted rules while other methods skirt the gray area between being within the rules and not, while still other methods break the established rules. In modern times, doping - the use of performance-enhancing drugs - has been one method athletes and their trainers have used to beat their competition. The history of...