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In humans, yawning is often triggered by others yawning (e.g., seeing a person .... with autism spectrum disorders do not increase their yawning frequency after ...

Why We Yawn - WebMD


Sep 23, 2011 ... 23, 2011-- Why do we yawn? All humans yawn. So do most vertebrate animals. Surely it serves some useful function. But what that might be ...

The Real Reason We Yawn - WSJ


Aug 19, 2014 ... Most people yawn upon seeing someone else do it, but infants and people ... Dr. Gallup says he expects the human brain is similarly sensitive.

What makes us yawn? - HowStuffWorks


Ads. 1. what makes the human body ... Why are humans altruistic? Human Body ... Now that we know what a yawn is, let's look at what causes us to do it. On the ...

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


Jun 10, 2013 ... Other very human reactions are equally "contagious" -- think about the last time ... No one knows exactly why yet, but unborn babies do yawn.

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


Aug 12, 2014 ... Yet we also yawn during times of stress: Olympic athletes often do it before ... direct measurements of temperature changes in the human brain, ...

Why Do We Yawn - Why What How of Human Body - Pediatric Oncall


Kids Corner - Read About Why Do We Yawn On Pediatric Oncall.

The Surprising Science of Yawning - The New Yorker


Apr 14, 2014 ... Yawning is one of the first things we learn to do. ... Amsterdam, has discovered that the human fetus yawns during its first trimester in the womb.

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


The act of yawning (oscitation) occurs in almost all vertebrates- even birds and fish exhibit a form of mouth gaping similar to yawning. In humans, yawning can ...

Popular Q&A
Q: Why do humans yawn?
A: Our bodies take in less oxygen when breathing has slowed. Yawning brings more oxygen into the blood and wakes us up! Yawning - induced by hypoxia (low oxygen le... Read More »
Source: www.chacha.com
Q: Why Do Humans Yawn?!?
A: We yawn when the brain send a signal to have more oxygen supply. I agree with Elaine. When we have a little yawn, an amount of oxygen will be send directly to b... Read More »
Source: answers.yahoo.com
Q: Why do humans yawn?
A: Not Medical Advice: Humans yawn because it is thought to be the way how the brain cools down by bringing air into the nasal cavities and helping blood flow. rep... Read More »
Source: www.kgbanswers.com
Q: Why do humans yawn?
A: Yawning - induced by hypoxia (low oxygen levels in the blood stream) We need more Read More »
Source: www.chacha.com
Q: Why do human's yawn?
A: No one knows for sure. But there are many theories (ideas) about why people yawn. One is that when we are bored or tired, we just don't breathe as deeply as we ... Read More »
Source: answers.yahoo.com