Yawning is simply a biological response of the human body for getting to inhale more and more amount of air in lungs so that the body can extract enough oxygen required by the body muscles for particular instance.
You may call it as reflex of simultaneous inhaling and stretching of ear drums. It ia also a method to vent out the excess of carbon di oxide accumulated in the body and for that expulsion the body needs to inhale a lot of oxygen, so the human has to inhale in the form of yawn.
Another Answer
In many head colds, the Eustachian tubes can become blocked from mucus and/or swelling. When this happens, the pressure difference between the middle ear and ambient atmosphere cannot equalize. Slight pressure differences are noticeable and can be annoying. Greater pressure differences can be painful.
Possibly a ruptured drum. If you blow your nose & you can feel it in either of your ears, that is confirmation.
It sounds like something to do with air pressure in your ear. Like when you yawn or swallow hard to "pop" your ears when flying.
People don't just yawn because they're sick, first of all, they're brain sends out a message to the body, and then the body reacts as a yawn. You also yawn when you're tired, or need to lie down.
because we feel tired
Chew some gum, yawn, stretch your jaws. that usually works for me. =]
There is nothing you cannot help doing when you yawn. You do not even need to open your mouth - it is certainly possible to yawn with a closed mouth.
No many animal species also yawn, like cats, etc.
hold nose with fingers, and blow out nose with it plugged. or just try and yawn
You could have asthma, sleep apnea, or anxiety--just to name a few. You should see a doctor who can diagnose your condition and help you feel better.
Just write about you or someone else yawning after just waking up early on a Sunday morning!
you cant close you jaw when you yawn because it is trying to stretch like when we have sex
If you yawn this usually helps.