Science, asked by Narendra1111111, 1 year ago

why do we yawn?? this is a tricky question

Answers

Answered by Anonymous
3
Hey mate..

sometimes when there is irregular or insufficient supply of Oxygen in our body we tend to open our mouth to get more oxygen..This is known as yawning..

HOPE IT HLPS☺
Answered by aditya545
1
I know the complete ans. of this.
See when we become lazy and feel leepy we breathe slowly and have a shallow breathe then our body hav kess oxygen and then our metabolic rate decreases so our body demands more energy and fr ir more oxygen is needed and for that our body sends a signal to yawn so that we can have a good suplly of oxygen.And that is why we yawn when we fell sleepy.
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