Biology, asked by romioraj157, 9 months ago

why we have coming yawn?

Answers

Answered by TheJagirdaR

11

Answer:

One is that when we are bored or tired, we just don't breathe as deeply as we usually do. As this theory goes, our bodies take in less oxygen because our breathing has slowed. Therefore, yawning helps us bring more oxygen into the blood and move more carbon dioxide out of the blood.

Answered by shreya8968

1

Answer:

actually my 2-3 friendz on brainly know about me ........so that's why

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