Behind the glory medals, money, and fame of big-time sports lies a complex web of controversy and deceit. Doping and the use of banned performance-enhancing drugs (PEDs) to gain a competitive athletic edge is common in many sports. While doping can improve performance, it poses huge risks for athletes' health and careers. Some of the world's top athletes, have seen their images tarnished by doping scandals.Award-winning author Stephanie Sammartino McPherson uncovers the shadowy world of athletes who dope, the people and organizations that help them, and the scientists and officials committed to stopping them.