Next Previous Up First Last   National Geographic Superhuman Documentary, TV  (10/1/2008) 120 mins Disc 1. Some people possess the perfect combination of brute strength, raw power and pure speed. Discover the secrets behind their abilities as experts ask the most basic questions about super-human strength. Disc2 Discover the science behind one of the most controversial drugs of our time – anabolic steroids. What are the real dangers? Can they actually build muscle, increase mass and improve human performance? ... Play1 Play2