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

Always keep the big picture in mind- you are greatly loved by Jesus and your job is to love Him and others in return. The rest is detail.

I think viewers quite like it when I'm suffering or eating or drinking something horrible or really up against it in some quicksand or whatever.

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.

The special forces gave me the self-confidence to do some extraordinary things in my life. Climbing Everest then cemented my belief in myself.

My work is all about adventure and teamwork in some of the most inhospitable jungles, mountains and deserts on the planet. If you aren't able to look after yourself and each other, then people die.

I always wanted to be Robin Hood or John the Baptist when I was growing up.