Whydo you yawn?

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  • Whydo you yawn?


A yawn is a reflex consisting of the simultaneous inhalation of air and the stretching of the ... "If You Cough, Sneeze, Sigh, or Yawn, ... Why Do We Yawn?
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Positive: 28 %
WebMD News Archive. Sept. 23, 2011-- Why do we yawn? All humans yawn. So do most vertebrate animals. Surely it serves some useful function. But ...
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Contagious yawning is associated with the same parts of the brain that deal with empathy, ... Chances are you'll yawn at least once while reading this article.
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Why do we yawn when we are tired? And why does it seem to be contagious? ... if you stifle or prevent a yawn, the process is somewhat unsatisfying.
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The Real Reason We Yawn Yawns are contagious, but they keep the brain working in peak form. ... well, you can do the yawn thing on the side!
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Why do we yawn? Stitches: Nail biting: Why do we vomit? WHY DO WE YAWN? For that you'll first have to understand what happens when we breathe.
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