According to wikipedia - A sneeze is a semi-autonomous, convulsive expulsion of air from the lungs through the nose and mouth, usually caused by foreign particles irritating the nasal mucosa. A sneeze expels air forcibly from the mouth and nose in an explosive, spasmodic involuntary action resulting chiefly from irritation of the nasal mucous membrane. Sneezing can sometime be linked to sudden exposure to bright light.
Just a few minutes old and the miraculous machine we call a body is at work doing it's job. I remember smiling and thanking my father in heaven for the beauty of this healthy little boy that would be the final curtain for our family.