Yawning

Science (22 Jun, 2007)
Yawning Saves Your Brain From Overheating

When you see the other person yawning in the room, your instinctive response is to yawn too. However, it doesn't mean you are fighting with the urge to sleep. Scientists discovered that yawning is a process that protects our brain from overheating and serves as an alert signal to others. ...
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//7 Oct 02, 2009 06:15 PM | posted by: daddy

This is not false. Air does warm up as it flows through the nose, but that is because it draws the heat from the surrounding tissue. That's how nose breathing cools the brain and blood. In fact, air breathed through the nose passes right by the 'brain temperature tunnel' which is a small area, about where your eyeglasses rest on your nose. This is about the only area available to very efficiently affect the temperature of the brain without ice packs or devices. All other areas have substantial levels of fat and bone covering the blood supply. Blood does not have one temperature throughout the body, instead it draws up heat, which it then carries to natural radiant radiators like the palms and bottoms of the feet.

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//6 Feb 01, 2009 12:54 PM | posted by: Diggidy Dogg

Yeah dude.....

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//5 Dec 25, 2008 07:44 PM | posted by: Danielle

yes i belive it so thank you i am doing this for a scienc fair project and you just helped me alot

Health & Fitness (02 Jul, 2007)
Cigarette Price Increase Results in Bootlegging Boost

The significantly increased cigarette tax has reinforced smoking and diminished the results of cessation services. It has partially reduced tobacco use but caused a dramatic rise in illegal untaxed cigarettes sales on the streets of low-income minority communities, as showed the study organized by Columbia University Mailman School of Public Health researchers. ...
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Health & Fitness (18 Dec, 2008)
Why People Yawn

In most of the cases, yawning is associated in people with tiredness and boredom. Newly, it has been proved that a yawning person does not try to show lack of interest, but, on the contrary, just tries to catch your attention. ...
comments (1)

2 votes

//1 Dec 20, 2008 12:20 AM | posted by: sharaeff [InfoBIG]

As far as I know, people yawn when they need more oxygen, probably it also has a certain connection with overheating..

Health & Fitness (13 Mar, 2009)
Chinese Woman Has Been Howling with Pain For 26 Years

A 42-years-old Chinese woman shocks people around her with her howl for 26 years. She first began howling when she noticed that it relieves her pains in the back, but she had soon lost control over it. ...
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