The world’s fastest man by a mile, if you’ll forgive the pun, is Usain Bolt. Olympic champion in the 100-meter and 200-meter sprints as well as a member of the Olympic champion 4×100 meter relay team, just for the titles. 9.72 seconds = world record – and that was in 2008. That time was slashed to 9.58 seconds the year after.
So how does he do it? Can he do it without artificial help?