Image courtesy of stockimages at FreeDigitalPhotos.net Also known medically as the "closed-airway sneeze," it may be socially preferable, but healthwise may be harmful if not dangerous. With a sneeze, tremendous air pressure is created in the lungs which ideally should be released out the mouth... but if internalized to prevent release out the mouth, can cause immense pressure to buildup internally which may cause significant damage ranging from minor to severe requiring hosp…