Saturday, March 26, 2011

Is yawning infection?

Unborn babies yawn in the womb. Children and adults don't just yawn when they are tired or bored, but also before becoming active. We yawn when we go to sleep and when we wake up. The actual cause of yawning remains a mystery, and experiments with oxygen masks have shown that it has nothing to do with the lack of oxygen. It seems likely what yawning in the social signal that invites others to join in with whatever we want to do, whether it's some communal activity or simply going to yawning will do the same, so yawning really is infections. People who find it very easy to empathise with other are among the most infected.

see, make us becoming active.So, to become more active we must yawn frequently... Hahahaa... happy yawning k!! hihi...

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