It breaks my heart that my father never knew my children. He should have been around for another 25 years.

I train five days a week hard - but it is short and sharp - 30 to 40 minutes of functional and pretty dynamic body-strength circuits, then I do a good yoga session on the sixth day, then I rest.

One killer exercise that's really great is pull-ups with your legs out level. That's my favourite. It's such functional core strength, and that's why I can climb up trees and down vines.

I never wanted to do TV. I just did what I was trained to do through the Special Forces, and I've been doing that from a very young age.

I always had a really natural faith as a kid. Where I knew God existed and it felt very free and pretty wild and natural, and it wasn't religious.

In the British Special Air Service, combat fitness is all about running.

Survival is not about being fearless. It's about making a decision, getting on and doing it, because I want to see my kids again, or whatever the reason might be.