natural habbits

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Why do we sneeze or yawn??

prateekchalana @prateekchalana (85) • India 19 May 07

I see many people sneezing and yawning and i too yawn and sneeze but when i ask myself that why do we do that than i don't have any appropiate answer... Do you know the answer if yes then plz do share.... We will reach to a...

natural habbits

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