why do we yawn?
Question:
Answers:
yawning is an automatic response from your body when it detects that there is a lack of oxygen. It causes you to involuntarily yawn, an action that sucks in additional air in a gulp to circulate in your body.
Other Answers:
because you are breathing too shallow when you get tired, you lungs force you to take in a deeper breath..
i don't know but why did you post this under men's health?
because when we see the word or hear the word yawn we yawn or if we see someone actually yawning we tend to yawn! anyways does this make you yawn!
YAWNYAWNYAWNYAWNYAWNYAWNYAWNYA.
it is the body's attempt to take in oxygen
to take in more oxygen.
Your Brain is not getting enough oxygen..
so you yawn so you get a big gush of air to your brain!
Source(s):
Science class..
Why do we yawn? That is a good question. We yawn because when the air in our lungs that is shallow can't fit in your lungs, it needs to escape, but when your air leaves your lungs, you must replace the air immediatly, so you are breathing out and in at the same time, causing a commotion to make you make a "yawn".
People have a common misconception that the urge to yawn is triggered by the body's need for more oxygen. Well, according to a doctor who has made the study of yawning his life's work, the yawn is a communiqué.
It warns you that your body has slowed down and that sleepiness might overtake you. The warning is a reminder to prepare to bed down if it's nighttime and you're at home, or to perk up if it's broad daylight and you're in front of your boss or the preacher.
The yawn also communicates impending sleepy time to a group. For example, primates signal each other through yawns that evening time is coming on and they should seek shelter. We human animals too have all experienced being in a room with a yawner whose yawn infects everyone in the room.
A yawn can even be communicated by the eyes alone. Researchers have covered a person's mouth, leaving just the eyes showing, and the invisible yawn will set off yawns among a group of spectators. So a yawn is not communicated by mouth alone.
There is a type of very rare brain tumor and a neurological illness that can cause excessive yawning, but it's very unlikely that you have anything like that.
Source(s):
http://www.healthcentral.com/drdean/408/30826.html
More Questions and Answers
- How to remove hair in upper lip?
- how to get rid of blackheads forever?
- i only have one testicle can i still father babys? the one i have is my left one right one is gone.?
- What is your favorite STD?
- If you exercise at the same rate in the cold or hot, but sweat more in the heat, do you loose more weight?
- what are other birthcontrol methods other than the pill and the depo-shot?
- Will i ever get rid of this shyness that kills me :-(?
- How can you tell the difference between an allergy attack and a cold?