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2. What is the Purpose of Sneezing?

When working properly, a sneeze refreshes the nasal environment by trapping unwanted particles within the nose and expelling them via your body’s biological response to the irritants. Many believe that sneezes come in threes, but there is no set number of times you sneeze in a row. When you sneeze more than once, it merely means that the first one didn't do its job: removing irritants.

A man sneezes because he is allergic to dust.
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