When Englishman Roger Bannister was studying medicine at Oxford in the 1940's, he began to have great success as a member of the track team. He knew enough about physiology to question a long-held belief: that humans were simply not built to run a mile in less than four minutes. He was determined to shatter that myth, and he did. In this episode, Bannister describes how he developed his own unique approach to training, one that allowed him to very gradually improve speed, while leaving time for his studies in neuroscience. After eight years, he was ready. At a meet held in May of 1954, he stunned the world, running a mile in 3:59.4. It is considered one of the greatest athletic achievements of all time, alongside Sir Edmund Hillary's ascent of Mt. Everest.