Urban legends have been around since, well, time immemorial. They spread like wildfire, and are somehow accepted as fact by multiple generations. While fascinating (and sometimes even completely silly), many urban legends are firmly rooted in fallacy. We're not talking about the small-town rumors of high school heroes. We're talking widely accepted and distributed tales that are simply not true.
Recently, a curious soul took to Reddit's r/AskReddit community and asked its members "What urban legend needs to die?" The answers were not only entertaining but enlightening. While some of the examples are obvious in their fallacy (gum takes 7 years to digest), others were news to me. I'm embarrassed to admit it, but I did believe people when they claimed blood is blue inside the human body and red when it leaves. There goes my future as a doctor. Anyway, the point is, this thread actually taught me something - and maybe the following responses (or the whole thread!) will do the same for you.