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What makes us yawn and why does it seem to be contagious? ... What's behind this mysterious epidemic of yawning? First, let's look at what a yawn is. Yawning is an involuntary action that causes us to open our mouths wide and breathe in deeply. We know it's involuntary because we do it even before we are born.
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www.howstuffworks.com/question572.htm
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It's widely assumed that yawning occurs because we are tired or bored or because we see someone else doing it, but there isn't any hard evidence to support these beliefs. The most plausible explanation, and the one that is taught in medical school, ... Abe; Fun Facts About Yawning... Guaranteed To Make You Yawn!
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health.thefuntimesguide.com/2006/08/yawningandyawns.php
health.thefuntimesguide.com/2006/08/yawningandyawns.php
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Random Facts ... Scientists explain away the "contagious" nature of yawning, that is when one person's yawn triggers another nearby to yawn, as due to the power of suggestion, but are at ... » Trivia Facts about Yawning; » How much sleep do we need?; » Why do people snore?; » Why do we blink our eyes?; » Why do we laugh?;
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www.coolquiz.com/trivia/explain/docs/yawn.asp
www.coolquiz.com/trivia/explain/docs/yawn.asp
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IB Islamic Forum General Forums Health & Science Interesting Yawning Facts ... Re: Interesting Yawning Facts - 12-09-2006 ... The Prophet said, "Yawning is from Satan and if anyone of you yawns, he should check his yawning as much as possible, for if anyone of you (during the act of yawning) should say: 'Ha', Satan will laugh...
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www.islamicboard.com/health-science/33338-interesting-y...
www.islamicboard.com/health-science/33338-interesting-yawning-facts-2.html
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11 (yawn) facts about yawning ... Yawning has been observed in humans as early as the first three months after conception. ... Frequent yawning can be one of the symptoms of brain lesions and tumors, hemorrhages, motion sickness, opiate withdrawal, encephalitis and chorea (an abnormal voluntary movement disorder).
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www.azbedmart.com/sleep-advice/all-about-sleep/facts-ab...
www.azbedmart.com/sleep-advice/all-about-sleep/facts-about-yawning
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Q: Why is yawning contagious--Diogo C., No rth Arlington, NJ ... Yawning apparently triggers behavior transitions. We yawn when we wake up and need to get moving. We yawn next most often when we get ready to go to sleep. ... A few yawning facts:
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www.wonderquest.com/yawning.htm
www.wonderquest.com/yawning.htm
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A Few Cool Yawning Facts ... Yawning doesn't always mean you are bored. Adelie penguins actually yawn as part of their wooing ritual. Couples face each other and the males stand with their beaks wide open and face towards the sky.
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www.kidzworld.com/article/588-why-we-yawn
www.kidzworld.com/article/588-why-we-yawn
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Yawning acts like radiator for brains. Read about yawning facts, why we yawn, body functions, sleep study, brain functions, computer machine, medical science, birds, mammals, healthcare, body temperatures, parakeet, stimulations..etc ... Yawning is a phenomenon that keeps that cools the brains after it tires.
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living.oneindia.in/health/science-study/2008/yawn-facts...
living.oneindia.in/health/science-study/2008/yawn-facts-161208.html
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It appears to me that a long breath would serve the same purpose to the body as a yawn.In fact, several sources compared yawning to a long, slow breath.The most consistent facts about yawning are that it is a reflex originating in the brain stem, and that some chemicals stimulate yawning (the most cited were dopamine,
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academic.evergreen.edu/curricular/hhd2001/Yawn.htm
academic.evergreen.edu/curricular/hhd2001/Yawn.htm
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