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Since yawning is a reflex, it does not require consciousness.
Yes, you can yawn while sleeping, I've seen it done many times.
when you yawn you get rid of carbon dioxide and breathe in oxygen.
while sleepy CO2 accumulation increase and to get rid of it we yawn.
Same thing as when you yawn..... When you get tired you get a shortness of breath causing you to yawn...you yawn to catch your breath when your tired...
Since yawning is a reflex, it does not require consciousness.
Yes, you can yawn while sleeping, I've seen it done many times.
when you yawn you get rid of carbon dioxide and breathe in oxygen.
while sleepy CO2 accumulation increase and to get rid of it we yawn.
Same thing as when you yawn..... When you get tired you get a shortness of breath causing you to yawn...you yawn to catch your breath when your tired...
When you yawn it doesn't mean your sleepy. Even scientists don't know why you yawn.
We yawn because We yawn because we need to get rid of CO2, so that would mean if you don't yawn you will eventually die from hypercapnia (too much CO2)!
It means to yawn.
yawns are contagious becuase when we see another person yawn our brain sees it as that person is gasping for air and they dont have enough oxygen so as a defense mechenisme we will yawn also.
There are two answers.If you mean you can't hear yourself yawn, then it could mean you aren't yawning loud enough to hear it or you can't hear very well.If you mean you can't hear anything when you yawn, then that could be a problem or a sign of poor hearing. Everybody is different but when I yawn, I can hear stuff around me. Good luck and I Hope this helps =]
no it means you have rectal disfunction
They yawn for the same reason that you do, too much carbon dioxide in the body. Yawning is the body's was of releasing the excess gases.