I have to disagree on the sneezing question. Last Winter, I broke some ribs while ice skating. For the first few weeks, every breath hurt, and I was terrified I'd sneeze. But I didn't sneeze, not once. A few more weeks went by, I was in less pain, but knew a sneeze would damn near kill me. I didn't sneeze. Finally, about two months after my injury, I sneezed and I shouted, "Hurray, I'm all better!!" Who knew?!