Why do we yawn??
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When our brain is deprived of oxygen Yawning is caused by a feedback mechanism to take in a lot of oxygen to keep the brain cells working properly. It happens mainly when we're very tired and on the verge of sleeping...the most oxygen deprived state.
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good answer
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Answered by
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Hi there!
Yawning is a stereotypical reflex characterized by a single deep inhalation (with the mouth open) and stretching of muscles of the jaw and trunk.
It occurs in many animals, including humans, and involves interactions between the unconscious brain and the body.
Though the mechanism remains unclear. I'll tell most common reason "why we yawn?"
• We yawn when we’re sleepy or bored or if we see someone else yawn.
• Some people also yawn when they’re anticipating something important and when they’re stressed.
• Many think it’s because the brain lacks oxygen, but according to a new study, the thing most of these instances have in common is thermoregulation.
• Yawning helps cool the brain.
Cheers!
Yawning is a stereotypical reflex characterized by a single deep inhalation (with the mouth open) and stretching of muscles of the jaw and trunk.
It occurs in many animals, including humans, and involves interactions between the unconscious brain and the body.
Though the mechanism remains unclear. I'll tell most common reason "why we yawn?"
• We yawn when we’re sleepy or bored or if we see someone else yawn.
• Some people also yawn when they’re anticipating something important and when they’re stressed.
• Many think it’s because the brain lacks oxygen, but according to a new study, the thing most of these instances have in common is thermoregulation.
• Yawning helps cool the brain.
Cheers!
nice answer
and thanks
great
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