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Reasons:
1) Where, there is a discussion/lecture/conversation going on which you don't like and you don't have any interest in that.
2) An intimation to you where sleep is on head.
3) A sign of tiredness.
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∙ 14y ago
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WHY WE YAWN?
When we are sleepy or drowsy then our lungs don't take enough oxygen which increases carbon dioxide in our body. The brain senses this and sends us a messages that causes us to yawn. By Akhilesh Sharma
What makes us yawn?
We yawn cause of the lack of oxygen.
Do dogs yawn because their owners yawn?
No. They yawn for the same reasons we do.
What causes you to yawn?
We yawn because when we breath through our mouths it brings in more oxygen than when we breath in through our noses. ( which is what most people do.) Sometimes, our brain doesn't think that its getting enough oxgen so it makes you yawn. Try yawning now - feel how much oxgen comes into your mouth? That's why.
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 ?
WHY WE YAWN?
When we are sleepy or drowsy then our lungs don't take enough oxygen which increases carbon dioxide in our body. The brain senses this and sends us a messages that causes us to yawn. By Akhilesh Sharma
What makes us yawn?
We yawn cause of the lack of oxygen.
Do dogs yawn because their owners yawn?
No. They yawn for the same reasons we do.
What causes you to yawn?
We yawn because when we breath through our mouths it brings in more oxygen than when we breath in through our noses. ( which is what most people do.) Sometimes, our brain doesn't think that its getting enough oxgen so it makes you yawn. Try yawning now - feel how much oxgen comes into your mouth? That's why.
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 ?
What causes the ear to pop?
well all the chemical and stuff In your ear and the cartilage it usually pops when u yawn or sneeze
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.
Why do people yawn when they are cold?
A yawn is normally a response to a change in activity, although if you did not get enough sleep, you could become tired and yawn.
