2006-11-16 06:26:32 · 9 answers · asked by glacius91 1 in Health ➔ Other - Health
My husband's doc who treats him for Asthma said that hubby yawns even when he is not tired because his lungs need more air that what he is breathing in. He often yawns a lot before an asthma attack hits him.
2006-11-16 06:30:51 · answer #1 · answered by krchamp 3 · 0⤊ 0⤋
There are several reasons:
1) When your body is tired, a yawn is a signal to the brain that it needs to rest.
2) When you wake up and yawn, it signals the brain to "power up"
3) It is the way that the body signals to another person that you are at ease and in a non-offense type posture.
***The last one is for real, check it out. Cats have the same primal instinct - have you ever noticed two cats come face to face and either one or both yawn right in the face of the other?
2006-11-16 14:38:58 · answer #2 · answered by Goyo 6 · 0⤊ 0⤋
scientists used to believe it was our brain needed more oxygen but now they think that it's from cave man days before we had an actual language when one person would yawn it would tell the rest of the people it was time to go to sleep. they don't have any definite proof of the true reason behind yawning.
2006-11-16 14:30:21 · answer #3 · answered by athenajade 3 · 0⤊ 0⤋
It is due to (medically speaking) O2 depervation or the lack of oxygen. When you are tired or getting sleepy, the oxygen level drops, therefore you yawn to increase the oxygen level to your brain. When you sleep your at a relaxed stated and the body dosn't demand the intense level of oxygen as would need during the day while you are active.
P.S. Good question!!!!
2006-11-16 14:31:08 · answer #4 · answered by be happier own a pitbull 6 · 0⤊ 0⤋
Medical says it's lack of oxygen to the brain....Not me though...I just yawned thinking about yawning....OH that was mean I'll be doing it for hours now!
2006-11-16 14:30:35 · answer #5 · answered by ~Another Day~ 5 · 0⤊ 0⤋
To intake oxygen.
The body's way of signaling that there is not enough activity to provide sufficient oxygen for the bloodstream to deliver to the brain. Another way of saying that boredom from inactivity can cause yawning to provide more intake of air.
2006-11-16 14:29:16 · answer #6 · answered by Carl 3 · 0⤊ 0⤋
B/c of a lack of oxygen. When you yawn you automatically take a deeper breath.
2006-11-16 14:29:44 · answer #7 · answered by mel 4 · 0⤊ 0⤋
To take in more oxygen.
If you're a dog however they may yawn due to stress.
2006-11-16 14:30:40 · answer #8 · answered by Voice 4 · 0⤊ 0⤋
its contagious
2006-11-16 14:34:22 · answer #9 · answered by goodtimesgladly 5 · 0⤊ 0⤋