The participants of an extreme race run over 300 kilometers in 48 hours. During two days they don't sleep, don't stop, they even eat while running. After a couple of hours they start to feel faint, suffer contusions and even hallucinate. Those who reach the finish line experience great euphoria. Why do people take part in races that are so challenging? Running helps them work through frustrating issues - a stressful job, personal troubles, trauma from the past. They miss the feeling of accomplishment and living life to the fullest. Only when they are running, they feel truly alive.