Author Adharanand Finn talks with exercise scientist Nick Tiller about scientific consensus, the placebo effect, and running trends like nasal breathing, barefoot running, paleo diets, and ice baths. They also delve into the question of whether ultra running is bad for you.

Author Adharanand Finn chats with the double World Mountain Running Champion Grayson Murphy about how she learned to trail run by playing football, what it feels like to run away from a world class field, and how she deals with the comedown after a big win. Music by Starfrosch

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

Author Adharanand Finn talks to three finishers of the world's longest race: the Self-Transcendence 3100. Kobi Oren, William Sichel and Susan Marshall recall the pain and ecstasy of running 3,100 miles around one block in New York City. Music by Starfrosch

Author Adharanand Finn chats with ultra runner Tom Evans about recovering from injury, finishing third at the UTMB, and how he copes with the pain cave. Music by Starfrosch

Host Adharanand Finn chats to award-winning author and runner Richard Askwith about his new book The Race Against Time: Adventures in Late-Life Running. Music by Starfrosch

Author Adharanand Finn chats with five-time Olympian and European 10,000m champion Jo Pavey about training for big races with two kids in tow, racing against drug cheats, and running with kangaroos. Music by Starfrosch

Adharanand Finn, author of Running with the Kenyans, chats with the greatest marathon runner in history about his diet, why the East Africans are such strong distance runners, and what goes through his mind while he's running. Music by Starfrosch

Recorded live from Chamonix in France a week after Adharanand ran the 100km CCC race, this episode also features talks recorded at the Love Trails festival by authors Sabrina Pace-Humphreys and Hannah Phillips. Music by Starfrosch

Author Adharanand Finn talks to punk rocker, fell runner and theatre performer Boff Whalley about tumbling down mountains, mass trespassing and his latest book, Faster! Louder! Top ultra runner Damian Hall also joins the show to talk about The Green Runners and why everyone should sign up. Music by Starfrosch