There’s something mythical, magical – almost untouchable – about the marathon to many people. It is quite a feat to finish a marathon, really to even attempt one. 26.2 miles is quite an undertaking. Some people don’t even want to drive that far in their car. But it can be done. And it is done. By millions of mere mortals each year. Here, the Washington Post busts 5 common myths regarding this epic race.