Scientists aren't quite sure why we yawn, and even less certain of why it's so contagious. It's just an inexplicable compulsive behavior, like how some people feel the need to say, "I don't even own a TV," at the slightest provocation. But a new experiment has found that it's possible to alter the contagiousness of a yawn, and understanding how and why might be the key to addressing the symptoms of Tourette syndrome.
Don't Think of a Pink Elephant Yawning
Stopping Contagious Behavior
Written by Reuben Westmaas September 20, 2017
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