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Science of Akubi (あくび – Yawn)

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    Science of Akubi


    Yesterday I talked about the Japanese word “akubi” (あくび), which means “yawn.”

    Actually, no one has yet explained the mechanism of yawning.

    Gordon at the State University of New York at Albany et al. has indicated an intriguing possibility that we yawn to control/cool our brains.

    Also, it is known that yawning is sympathetic or contagious regardless of species, but no one has yet clarified the reason.

    Anderson at the University of Stirling et al. has proposed a theory that the yawn could be an instinctual signal to inform that it’s the time to sleep among animals.

    Incidentally, note that if you yawn a lot in the day, you could be sick.

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