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Why We Yawn

Next time you're with a group of your friends, try this out. Take a big yawn, don't forget to cover your mouth, and wait to see how many other people yawn. There's a good chance your yawn will be contagious. In fact, before you even finish reading this story it is likely that you'll yawn at least once. Not that I'm trying to bore you, but just reading about yawning will make you yawn.

Yawning doesn't always mean you are bored. Adelie penguins actually yawn as part of their wooing ritual. Couples face each other and the males stand with their beaks wide open and face towards the sky.

As for why people yawn... good question. Nobody really knows why we yawn. For a while scientists believed that you yawned when there was too much carbon dioxide and not enough oxygen in your blood. Part of your brain realized this and triggered you to yawn. As your mouth stretches you inhale deeply, sending a shot of oxygen to the lungs and into the bloodstream. That theory went out the window because nobody can prove it.

The reason yawns are contagious? Power of suggestion perhaps. If you're out late with your friends after school, you're probably tired. You're probably on the verge of a yawn, too, and seeing one person do it is enough to drive everyone to yawns.

Have I made you yawn yet? If I have, I hope it's not cuz you're bored, but simply by the power of suggestion.

A Few Cool Yawning Facts

  • The average yawn lasts about six seconds.
  • 55 percent of people will yawn within five minutes of seeing someone else yawn.
  • Blind people yawn more after hearing an audio tape of people yawning.
  • Reading about yawning will make you yawn.
  • Olympic athletes often yawn before competition.
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lollipop900boo
lollipop900boo posted in Style:
i would wear skirts becuz there more comfortable for me
reply about 3 hours
krxcore
krxcore posted in Family Issues:
Dad and an older brother. funfunfun!
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XxbriibriixX
My Dad and my older Brother
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blakbutterfly
"brunostar" wrote:That's immature xD Ehh yeah, probably but it works every time, and I usually don't repeat the same mistake. Plus, I'm way too attached to my mom to be able to stand an hour without her talking to me or see her sad. 
reply about 20 hours
brunostar
"blakbutterfly" wrote:This is a pretty old post...Anyway, my mom's method most of the time is give me the silent treatment or a lecture until I feel guilty enough to not repeat my mistake! That's immature xD
reply about 20 hours

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