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Why Is Yawning Contagious?
Posted 12 years ago by boyt in category: interesting
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dodli (guest) - 12 years ago [ Reply ]
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Strangely missing is the fact that yawning is most closely associated with drowsiness or boredom. I think yawning is a (feeble) attempt by the body to stay alert. Somehow, it invigorates your brain.

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