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Yawn

en.wikipedia.org/wiki/Yawn

[edit]. File:Fetal yawning 4D ultrasound ecografia 4D Dr. Wolfgang Moroder. theora.ogv Play media. Video of a yawning fetus at ...

Why We Yawn - WebMD

www.webmd.com/brain/news/20110923/why-we-yawn

Sep 23, 2011 ... People yawn more easily in cooler temperatures, supporting the idea that yawning ... 23, 2011-- Why do we yawn? ... MS Symptoms & Causes.

The Real Reason We Yawn - WSJ

www.wsj.com/articles/the-real-reason-we-yawn-1408403897

Aug 19, 2014 ... Scientists working to unravel the mystery surrounding the yawn, and why it's contagious, have discovered that yawning is much more ...

What makes us yawn? | HowStuffWorks

science.howstuffworks.com/life/inside-the-mind/human-brain/question572.htm

So what's behind this mysterious epidemic of yawning? First, let's look at what this bodily motion is: Yawning is an involuntary action that causes us to open our  ...

Facts About Yawning: Why We Do It, Why It's Contagious And More

www.huffingtonpost.com/2013/06/10/facts-yawning-why-we-yawn-contagious_n_3398301.html

Jun 10, 2013 ... The most recent research on yawning suggests that it exists to cool down the brain. That open-mouthed yawn causes sinus walls "to expand ...

Why do we yawn? Nothing to do with boredom - we're just cooling ...

www.independent.co.uk/news/science/why-do-we-yawn-nothing-to-do-with-boredom-were-just-cooling-our-brains-say-scientists-9356468.html

May 12, 2014 ... A new study has suggested that the reason we yawn has nothing to do with tiredness or boredom, but actually works in order to cool down our ...

Yawning - excessive: MedlinePlus Medical Encyclopedia

www.nlm.nih.gov/medlineplus/ency/article/003096.htm

Excessive yawning that happens more often than expected, even if drowsiness ... You may need tests to look for medical problems that are causing the yawning.

BBC - Future - One of science's most baffling questions? Why we yawn

www.bbc.com/future/story/20140811-warning-this-may-make-you-yawn

Aug 12, 2014 ... Yawning has puzzled scientists for more than two millennia. ... the cavities that should cause our mucus to evaporate, which should chill the ...

Why do we yawn? (Everyday Mysteries: Fun Science Facts from the ...

www.loc.gov/rr/scitech/mysteries/yawn.html

Yawning might serve a social function (to communicate boredom) and a ... that yawning causes an increase in blood pressure, heart rate and oxygen in the ...

Popular Q&A
Q: What Causes Yawning?
A: Humans and animals alike yawn. Everyone does it, but scientists can't agree on what causes yawning, or why we yawn. There are several theories, but no proof tha... Read More »
Source: www.ehow.com
Q: What causes yawns.
A: a reflex of simultaneous inhalation of air and stretching of the eardrums, followed by exhalation of breath. Pandiculation is the term for the act of stretching... Read More »
Source: www.answers.com
Q: What causes yawning?
A: causing yawning can be because you are tired or did not get enough sleep. Read More »
Source: wiki.answers.com
Q: What causes yawn?
A: The body needing an intake of air. Also, it is the body's way of stretching the facial muscles. Plus, it lubricated the eyes. Did you know that you can only pas... Read More »
Source: uk.answers.yahoo.com
Q: What causes yawning?
A: I've tried and tested several things personally. If you see someone yawn, you will yawn. If you imagine hard and clear enough, the image of someone yawning in y... Read More »
Source: answers.yahoo.com