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Why do people sneeze?

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This answer contributed to Susan G. Komen for the Cure® What's this?
My answers support Susan G. Komen for the Cure® What's this?

When something foreign gets in your nose, you sneeze so it won't get into your lungs. It's an automatic response. Your nose is like a filter for your lungs. That is a way to simple and not scientific answer but I think it gets the point across.

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thnxs
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dust particles possibly

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por que sim :s

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TinkerTuTu

Irritation to the nose.

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so they dont have to look at your face

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i think dust or something like that got in their nose and they are getting it out

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To expel the cancer.

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When something tickles or bothers your nose I guess

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