Friday, March 6, 2009

What is the purpose of yawn?



One usually yawns when bored or tired. Yawning makes you draw in breath, filling your lungs with air. This increases the oxygen supply to the blood to help wake yourself up.
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17 comments:

  1. AnonymousMarch 7, 2009 at 12:44 AM

    but why everyone do the same when somebody yawns, i mean is it contagious

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  2. GraffitiMarch 7, 2009 at 1:09 AM

    Did you know that a laugh is actually a nervous reaction caused by the diaphragm going into spasms? In monkeys it is a sign of fear, can't remember where I read it but essentially it's a sign of subconscious panic when the brain cannot work out a problem - ha ha

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  3. JongMarch 7, 2009 at 3:21 AM

    yeah, akskhanbl..it is sometime contagious,lol..

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  4. UnknownMarch 7, 2009 at 3:06 PM

    When your full, you will yawn too...hahaha

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  5. Prime MinisterMarch 7, 2009 at 4:44 PM

    interesting!

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  6. DannyMarch 7, 2009 at 5:30 PM

    Seeing somebody yawning probably will remind you that your brain is short of oxygen too.. that's we thought it's contagious.. hehehehe..

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  7. Princess HairstylesMarch 7, 2009 at 8:31 PM

    Hmmm, I've never really thought about it. Interesting! Thanks for stopping by my blog :)

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  8. GopalMarch 7, 2009 at 11:37 PM

    Fantatic simple facts. We all in our family enjoy these posts from you.

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  9. UnknownMarch 9, 2009 at 6:58 AM

    That's a cool fact! Thanks for sharing.
    I've always wondered though, why people yawn, when other people yawn. The only awnser I ever found, is that you are more "epathic" when you *respond* to someone yawning, by yawning yourself.

    Don't know if it's true, so I can't portrait it as a fact...

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  10. Javin ChaiMarch 11, 2009 at 12:20 AM

    haha, I know this. Thanks for sharing^^

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  11. AnonymousMarch 11, 2009 at 2:55 PM

    Yet there is no scientific proof for that reason at all, of why its being contagious. Not even to the reason why we yawn, it doesn't mean you're sleepy or something to do with sleep deprivation at all.

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  12. Aihara Ramintessah SanchezMarch 18, 2009 at 5:38 AM

    thanks for sharing these bunch of info!nice blog you have here!

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  13. ChattyMarch 19, 2009 at 3:05 AM

    nice blog site, very informative and fun trivia! :)

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  14. gagay, MDApril 4, 2009 at 9:36 PM

    hola kuya jong!! dropping by!

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  15. AnonymousApril 9, 2009 at 2:49 AM

    very interesting,thanks for sharing

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  16. salemApril 10, 2009 at 8:20 AM

    That's a cool fact! Thanks for sharing.

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  17. Blogger ManjaApril 12, 2009 at 6:04 PM

    Hi...hi..... Good Question :)
    I Don't know what is the purpose, but I like It Very much...... hhhhuuuuuaaaach (Yawn again )

    Regards

    ReplyDelete

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