What does sneezing do?

5. You don't sneeze in your sleep. When you sleep, so do your sneezing nerves -- which means you usually don't sneeze when you doze. 6. Your workout may make you sneeze. "Exercise can make you sneeze," Kao says. "You hyperventilate when you're over-exerted, and as a result, your nose and mouth start to dry up. read more

Rarely does the act of sneezing (also called sternutation) involve only one sneeze. Often two or three sneezes come in quick succession. The reason we sneeze in multiples has to do with why we sneeze in the first place, says Marjorie L. Slankard, MD, an associate attending physician and the director of the Allergy Clinic at Columbia-New York Presbyterian Medical Center in New York City. read more

Clears the nasal passages, because a sneeze is caused by irritation or itchiness in your nose or nasal passages. read more