"The modern world abdicates responsibility, but when you're running in temperatures of -50, it's on you and only you can survive." Ultra marathon runner, Brian Bell, is a man who knows all about endurance, resilience and peak performance and is this week's guest on Enda McNulty's Commit podcast. Describing himself as an ordinary person, he does extraordinary things and pushes himself to the limit, but, he says, if he can do it anyone can. "If you're passionate and really want something you can achieve. People in Ireland can be afraid to dream and can be afraid to express it for fear of ridicule. But put it out there, dream and make it happen." For more: mcnultyperformance.com