Tim Noakes is one of the world’s leading authorities on the science behind sport and a successful sportsman in his own right. In this new and updated edition of Challenging Beliefs, Noakes shares his views on everything from the myths perpetuated by the sports-drink industry to the prevalence of banned substances, why the Springboks lost the 2011 Rugby World Cup and the benefits of a high-protein, low-carb diet. In providing an intimate look at the golden threads running through Noakes’s life and career, this remarkable book reveals the landmark theories and principles generated by one of the greatest minds in the history of sports science.