Yawning is contagious. Even thinking about yawning is enough. In fact, there's a 50% that you're about to, or just did, yawn.
Yawning is contagious, we all know that. Nobody knows exactly why, but it triggers something in the brain.
It's also been seen in chimpanzees, and dogs!
Nobody's sure what the true purpose of yawning is. Many say the reason is to bring oxygen to the brain, and cool it down.
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CasualeDo you like facts? Do you like randomness? Well, you can get both here! I'll be giving you a bunch of random facts, ranging from why a sandwich is called a sandwich, because I mean, it has nothing to do with sand or a witch, to the age old question...
