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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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alee
i am in love with a boy ..and planning to marry him ..  [s:p/zwq] [s:p/oaq] [s:p/1koh] [s:p/1jn8] [s:p/1jks]
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... This happened to me.
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So yesterday, my dad checked my search history. Harmless, right? Well... you haven't seen it. Because they gave me a LONG lecture yesterday about what I read. I feel like they don't trust me on the internet anymore. But I also understand. Because you know what the history was? Phan  ѕмυт. LOTS of phan ѕмυт. How do I gain their trust? My mom won't let me use headphones and threatened to not let me go to VidCon. I'm not just angry and betrayed at my dad for snooping in my phone, but also embarrassed and ashamed. I'm only 10, for God's sake! They should be worried about my access to the internet. How do I gain their trust again?!
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