Drugs in sport are big news and the use of performance-enhancing drugs in sport is common. Here, Chris Cooper, a top biochemist at the University of Essex, looks at the science behind drugs in sport. Using the performance of top athletes, Cooper begins by outlining the limits of human performance. Showing the basic problems of human biochemistry, physiology, and anatomy, he looks at what stops us running faster, throwing longer, or jumping higher. Using these evidence-based arguments he shows what the body can, and cannot, do. There is much curiosity about why certain substances are used, how...