Usain Bolt's already won gold in London, but the Jamaican sprinter is looking to repeat his 2008 Olympic performance by dominating the men's 200m and securing his title as the world's fastest man. This infographic provides a complete "body breakdown" of the 26-year-old track star who's already made Olympic history. Continue below to discover what it takes to be Usain Bolt. Apparently chicken nuggets have something to do with it.  []