An historian, a PB and two stopwatches

Ian Mortimer joins Vassos and Louise this week to talk about his new book - "Why Running Matters: Lessons in life, Pain and Exhilaration - From 5K to the Marathon". Ian tells us about what made him start running, his inspiration for writing a book and why parkrun is so important to him. Producer Patrick questions Louise's time keeping abilities after breaking his PB and your niches continue to astound us.