Spanish endurance athlete Kílian Jornet is a legendary mountain runner and ski mountaineer. Without a doubt, he's one of the greatest of his generation. But in 2017, he achieved something that – even by his own mind-boggling standards – was incredible: he travelled up Everest twice, without oxygen, in the space of a week. In this episode, Kílian tells Rob about how his upbringing has shaped his love of nature, and what motivated him to take on the world’s highest peaks in such spectacular fashion. Listen to all episodes and discover more about How to Be Superhuman at http://redbull.com/superhuman