At one time, doctors were expected to have expertise in all aspects of the human body and treat every ailment. Nowadays, there is a specialist for every section of our anatomy. We can see a similar contrast in the professional expectations of athletes, then and now: Previously there was a one-size-fits-all conception of the athletic physique—strong, broad, long-limbed. As sports have diversified and victory in each arena relies on such small margins, competitors are determined to retain an edge and embrace diversification. READ MORE