My grandfather took a shot to the head in World War II, got up, kept firing, was forced home. Later he smoked cigars like they would cure cancer. They didn't. They gave him cancer and they removed his jaw. He fell, once. Grumbled something, drooled every where, crawled back in bed, and cussed for his wife to get him a beer to deal with the broken bones.
He's dead now. Just saying.