Surgeons who grew up playing video games make 37 percent fewer mistakes.
Redheads require up to 20% more anesthesia to be knocked out.
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
Andre the Giant had surgery, but the doctors couldn't figure out how much anaesthesia to use due to his size. Instead, they used Andre's claim that "it usually takes two liters of vodka just to make me feel warm inside" as their guide.