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Anonymous
Anonymous asked in Social ScienceOther - Social Science · 1 decade ago

help plz!!!?

wat is a yawn? we yawn lots and it sympithises we r tired but why do we yawn? wat is it? thanks for your anwsers.

(ps i cant spell today lol)

3 Answers

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  • 1 decade ago
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    Yawning is cause by a lack of oxygen to the brain.

    It can also be triggered as a psychological response to outside stimuli (IE: another person yawning.)

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  • 1 decade ago

    A yawn is to open the mouth somewhat involuntarily with a prolonged, deep inhalation and sighing or heavy exhalation, as from drowsiness or boredom.

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  • 1 decade ago

    We yawn because we are tired or sleepy. it is one way of the body reacting to these situations.

    Source(s): Kisii community
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