You can't outthink your mental health problems. You can sit at home and ruminate, or you can get outside and move. One of those makes it worse. The other doesn't fix everything, but it's a foundation. Strong body first, stronger mind from there.

Kori got sober nearly four years ago, got diagnosed with ADHD, and has spent the years since chasing bigger and bigger things. His first marathon, then a 50k in the Alps, a 220km race in Africa, running the entire length of England. Now he's signed with On and completing all the World Marathon Majors.

We discuss what drove him to keep going bigger. What was the point of it all? Why running across a country didn't give him the fulfilment he expected, and how he came to realise that bigger isn't always better. That at some point, you've done enough.