Ever wonder why we yawn, why we hiccup or have twitchy eyes? Fact is, our bodies do a lot of weird things, but most of them are completely involuntary. In this episode of It’s Okay To Be Smart, Dr. Joe Hanson takes a closer look at these crazy, involuntary behaviors.
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Henry Reich tells us that humans yawn to cool their brains. “Scientists now believed that yawning has developed as a way of physiologically cooling your the brain,” he says. “Much like a computer, your brain works best at a certain temperature and tries to avoid overheating.” In this edition of AsapSCIENCE, Reich fills us in on more details.
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It’s often said that yawning is contagious. If you see someone yawning, you suddenly feel the urge to yawn yourself. Daniel Mercadante assembled this collage, using found footage, to give you an easy tool to test out the hypothesis.
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