yes, you have to take a deep breath, hold it then swallow the air and do that 3-5 times you should yawn very soon afterwords.
You breath in oxygen for your blood to take to your brain so you can think. If you run low on air you become tired and yawn so you get more air to your brain.
No, it is not possible to yawn with your mouth closed. Yawning is an involuntary reflex that involves taking in a deep breath of air and stretching your jaw, which requires opening your mouth. Trying to yawn with your mouth closed can result in discomfort or not fully satisfying the yawn reflex.
When you yawn, its because you're a little inactive. When youre not doing anything, you breathe slowly, not letting enough air get to your lungs. So your brain tells you to take a deep breath, which is what we call a 'yawn' -from Taylor (a 12 year old)
Yawning can dry out the mouth and reduce saliva flow, which allows bacteria to proliferate and release sulfur compounds that cause bad breath. Additionally, when you yawn, you are pulling air and saliva from the depths of your throat, potentially bringing up odor-causing bacteria.
Coyotes breath air into their lungs just like you do.
People yawn because the body reacks to oragans and air gets traped
it helps them breath because they dont have lungs
Birds breath air, just as we humans do, their respiratory system extracts the oxygen which they need to live, again just as we do.
they dont breath under water the just hold it and come up for air
Because, it's just natural. The trees breath in the air we breath out. We breath in Oxygen, and breath out carbon dyoxide. They renew the carbon dyoxide, and cleanse it. Then we breath it back in.
no its just air it cant hurt you :p