for extreme risk and, as a result, our ability to perform well in dangerous conditions. But others have a much higher tolerance for risk. Take the example of Daron Rahlves, a top U.S. downhill ski racer. The high element of risk makes you feel alive, tests what you are made of and how far you can take yourself, Rahlves said in a previous interview eith U.S. Ski Team staff. I'm not looking for danger. L'm in it for the challenge, my heart thumpiing as l finish, the feeling of being alive, he said. I definitely get scared on some of the courses. it just makes me fight more...That's when I do best.