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Yawning

yawning

An involuntary deep inspiration with the mouth open, often accompanied by the act of stretching.


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why do we yawn???

... a bit. As a result, it’s believed, our brain prompts the body to either sigh or take a yawn to get more air into the lungs. But certain aspects of yawning remain even more mysterious. Fetuses, for instances, have been observed yawning in the womb, yet it’s known that they don’t take oxygen in through ...

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by santana8
Wed Aug 24, 2011 12:27 pm
 
Forum: Physiology
Topic: why do we yawn???
Replies: 21
Views: 27541

Solve medical mystery ~ yawn, stretch, tremors

... totally awake and I figure the shaking woke me up. In addition, is an uncontrollable impulse to yawn. Seems sort of like an average normal thing, yawning or stretching that is. My body is new to sleeping on my side and am not supposed to sleep on my back because I'm in my second trimester, so ...

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by pookieboo
Fri Jan 23, 2009 11:58 pm
 
Forum: Human Biology
Topic: Solve medical mystery ~ yawn, stretch, tremors
Replies: 3
Views: 10767

why do we yawn???

Heh, nice 2-year leap. I like the facial-muscle-stretching explanation. We sigh when we need more O2, we don't need yawning for that. I also like the social-evolution explanation that it combines intimidation displays and sleep coordination. Now I cant' stop yawning...

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by AstusAleator
Tue Oct 28, 2008 12:25 am
 
Forum: Physiology
Topic: why do we yawn???
Replies: 21
Views: 27541

why do we yawn???

Children under 5 years do not appear to find yawning contagious just like in chimps. Some studies suggest contagious yawning to be a result of empathy and self-awareness, both of which require a sophisticated intellect.

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by Adamx
Mon Oct 27, 2008 6:49 am
 
Forum: Physiology
Topic: why do we yawn???
Replies: 21
Views: 27541

Re: why do we yawn???

I don't know the correct reason, my grandma yawning always after ate.

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by shanpeter
Thu Jul 03, 2008 8:33 am
 
Forum: Physiology
Topic: why do we yawn???
Replies: 21
Views: 27541
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