Saturday, January 22, 2011

{Have You Ever Wondered....}

....why we yawn? Yesterday morning I was sitting in my soil science class and was yawning uncontrollably. Like once every five seconds. And the thought came to me, "Why do we yawn? What does it have to do with being tired?" Pretty good question right? What does opening your mouth do to alieviate fatigue?

I did some research and found out that we don't really know why we yawn!
Check it out here.

{Alguna vez se ha preguntado, "porque bostezamos cuando estamos cansados?" Yo tenia esta pregunta ayer en mi clase cuando estaba bostezando mucho. Bueno busquelo en google!}

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