Anabolic androgenic steroids (AAS) remain the most used/abused drugs in the athlete and recreational gym user. However, there are some new drugs such as human growth hormone and insulin that are being used by athletes in order to gain a competitive advantage. This book presents separate and multi-disciplinary perspectives of anabolic androgenic steroids and other current drugs of use in sport. The perspectives discussed in this book range from those of sports medicine research scientists, a medical practitioner and sports physician, behavioural scientists and molecular physiologists. There are further contributions from experts in the sociology and ethics of sports doping.