Survival requires us to leave our prejudices at home. It's about doing whatever it takes - and ultimately those with the biggest heart will win.

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.

That feeling when you're so cold you'd give anything to be warm - I've had it before, literally huddled around a candle flame on an ice sheet.

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.

Textbook survival tells you to stay put. Stop. Wait for rescue. Don't take any risks. But there'd been a whole host of survival shows like that and I didn't really want to do that.

I don't like expeditions where it is a total lottery whether you live or die. You have to keep those sort of good luck cards for rare occasions!

Weather can kill you so fast. The first priority of survival is getting protection from the extreme weather.