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Usually, we yawn when we are tired or bored and probably breathing slowly and not very deeply. Then the brain's automatic control of breathing will trigger a deep breath. This is what we call a yawn.
This automatic control works from a spot in the base of the brain. Its job is to keep checking on the carbon dioxide in the blood. When there is too much carbon dioxide, the control speeds up our breathing to help take away the carbon dioxide.
It may seem strange to think that our breathing is controlled automatically. We can think about our breathing and decide to breathe rapidly or slowly. But most of the time we do not think about how to breathe, and the automatic control does the job.
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∙ 12y ago
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Are humans the only ones that yawn?
No, dogs do yawn too. I hope some other animals also yawn.
Why humans yawn?
Because when you get sleepy your body goes into a sleep mode and takes in less air but since your awake and need more air you yawn to get 'emergency' air. Hope that helped
Do you yawn when you need more oxygen?
yes yes. Dogs yawn when there brain slows because of lack of oxygen, so it should be the same for humans That is true and YES it means you are *TIRED*
Do dogs yawn because their owners yawn?
No. They yawn for the same reasons we do.
Why do many yawn when one yawns even out of sight?
they yawn because when you yawn it passes on to other people . so you yawn then someone's right next to you then i think they inhale then they start to yawn ?
Are humans the only ones that yawn?
No, dogs do yawn too. I hope some other animals also yawn.
Why do budgies yawn?
Same as humans because there tired
Why ants yawn in human manner?
They don't. Ants have a completely different respiratory system to humans.
Why humans yawn?
Because when you get sleepy your body goes into a sleep mode and takes in less air but since your awake and need more air you yawn to get 'emergency' air. Hope that helped
Do you yawn when you need more oxygen?
yes yes. Dogs yawn when there brain slows because of lack of oxygen, so it should be the same for humans That is true and YES it means you are *TIRED*
Do dogs yawn because their owners yawn?
No. They yawn for the same reasons we do.
Why do many yawn when one yawns even out of sight?
they yawn because when you yawn it passes on to other people . so you yawn then someone's right next to you then i think they inhale then they start to yawn ?
Does a snail yawn?
yes they yawn quietly
Why do you yawn in your sleep?
how do you know you yawn if you are sleeping?
Can cows yawn?
No whales do not yawn.
Is yawn an onomatopoeia?
Yes, yawn is an onomatopoeia.
Can you give a sentence for the word yawn?
Insects do not yawn. People necessarily do not yawn only when they are tired. Most people, after reading this, will yawn.
