My faith isn't very churchy, it's a pretty personal, intimate thing and has been a huge source of strength in moments of life and death.

Never depend on those luck moments – they are gifts – but instead always build your own back-up plan.

Juice Plus+ is great stuff that I have used through all of my expeditions. What I like about it is that the research behind it is so strong. It is 100% natural, is whole food based, and I love the fact that it provides raw, anti-oxidant fruit and veg in a capsule form. For me it fulfills a key part of my nutrition, training and recovery needs.

One thing I know for sure: it is only by doing what we fear that we can ever truly learn to be brave.

You're not human if you don't feel fear. But I've learnt to treat fear as an emotion that sharpens me. It's there to give me that edge for what I have to do.

The truth is, I need 10 lifetimes to scratch the surface of the things I'd love to do.

Are you the sort of person who can turn around when you have nothing left, and find that little bit extra inside you to keep going, or do you sag and wilt with exhaustion? It is a mental game, and it is hard to tell how people will react until they are squeezed.