'I felt I had the key to infinite power' - tales from a six-day race in France, with Bob Hearn

<p>Author Adharanand Finn shares stories from his recent six-day race around a 1km loop in France, including recordings he made during the race. He also talks to the race winner, Bob Hearn, from the US, to get another perspective on the madness of six-day running. Music by Starfrosch</p>