What is yawning
Yawning is an involuntary action that causes us to open our mouths wide and breathe in deeply. We do it even before we are born! [ Source: http://www.chacha.com/question/what-is-yawning ]
More Answers to "What is yawning"
- A yawn (from the Middle English yanen, an alteration of yonen or yenen, which in turn comes from the Old English geonian[1]), is a reflex of simultaneous inhalation of air and stretching of the eardrums, followed by exhalation of breath. Pa...
- http://wiki.answers.com/Q/What_is_a_yawn
- Yawning is a phenomenon that all humans, as well as some animals, experience. We open our mouths, take a long inhalation, and expand our eardrums when we yawn. What exactly do we achieve by doing this?Though common knowledge is that we ya...
- http://www.ehow.com/how-does_4895590_do-we-yawn-others-yawn.html
- its a ridiculeous feeling...mouth is open, ur tm joint is stretched and for some second u just cant suppress it... It can signal tiredness, boredom or even rudeness, and everyone does it. But, now, a new science may explain why people yawn,...
- http://answers.yahoo.com/question/index?qid=20081020115604AAydXTB
Related Questions Answered on Y!Answers
- ...Yawning...?
- Q: Me and mom were waching a commercial the other day, and on this commercial the pepole were all yawning. After it got to the middle we were both yawning. Whats the deal. I`v though about this befor and kinda just blew it off. So are yawns contagious???
- A: A yawn is a semi-automatic reflex that originates in the brain stem in response to a lower level of oxygen in the brain. Yawning also occurs when a person loses interest in their surroundings, i.e gets bored. It does not necessarily indicate fatigue, although people do tend to yawn when they're sleepy. A study was done in which heart rate, skin effects, and muscle tension were measured in 30 young adults before, during, and after yawns. They found that yawning did increase their level of arousal for a short time. Yawning is an action that occurs throughout the animal kingdom (cats in particular seem to yawn a great deal). In the late 1980s several studies were done in rats, and it was found that rats yawned more in the early morning before awakening and also when they were very hungry. Several different brain chemicals seem to be involved in yawning, but the mechanisms are still not understood. For example, yawning seems to be contagious. Why is that? (Just reading about yawning made me yawn several times!) In your case, I doubt that a lack of oxygen is the main reason you yawn. Since your yawning spells seem to occur mainly around bedtime or during the middle of the night, they probably are related to being sleepy and groggy.
- Who knows why am I always yawning like a thousand times a day?
- Q: Do I have some kind of medical problem,I am always yawning,I could be reading my answers to my questions or a book and I will always have to yawn,I am just got done yawning.Is there a cure to my yawning.I get enough sleep,10 hours a night.
- A: The following medical conditions are some of the possible causes of Yawning Excessively. There are likely to be other possible causes, so ask your doctor about your symptoms. * Excessive fatigue and sleepiness * Decreased amount of sleep (see Sleep symptoms) * Prolonged sleep deprivation * Stress * Sleep apnoea * Disturbed sleep patterns * Insufficient oxygen in blood * Boredom * Exposure to other people yawning * Awareness of prior yawning (perpetuates further yawning)
- Why do I always start yawning when I feel nauseous?
- Q: Since I can remember a sure sign that I might throw up is that I start yawning. I don't know if it has something to do with the gag reflex or what, but I always thought it was odd. Does anyone else experience this? Or does anyone know why it happens? Thank you for the HELPFUL answers!
- A: Yawning is a first sign of a vaso-vagal reflex. potentially adverse stimuli such as needle-prick or even generalized anxiety to some future event can lead to increase activity in vagus nerve,same thing applies to nausea also.Yawning and nausea mostly occur with motion-sickness,anxiety ,migraine.
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