Why is it that you never see anyone sneeze when they are concentrating on something important? You never see the President of the United States sneeze during his State of the Union address. You never an athlete sneeze in the middle of a 100-yard dash. You also never see a surgeon sneeze during a delicate operation.
However, when I try to suppress a sneeze, I can ‘hold it in’, but I can’t prevent the bodily convulsions that accompany it. So is sneezing voluntary or involuntary? Would it be possible for me to suppress the entire sneezing response??