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You are in a room full of people and one person yawns. Before long, everyone is yawning. Why?
Question
#22914. Asked by Richzooie. (Sep 30 02 1:02 PM)
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Brainy Blonde
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With your pencil and paper, keep track of the number of times you yawn while you are reading this page. I hope reading this page is not boring, but you may find that just thinking and reading about yawning makes you yawn. The results may surprise you. Did you yawn yet? If you did, make sure you count it. Please note, Brainy Blonde did! It is possible that yawns are contagious because at one time in evolutionary history, the yawn served to coordinate the social behavior of a group of animals. When one member of the group yawned to signal an event, all the other members of the group also yawned. Yawns may still be contagious these days because of a leftover response (a 'vestigial' response) that is not used anymore. None of this has been proven true and yawns are still one of the mysteries of the mind.
http://faculty.washington.edu/chudler/yawning.html
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