I learnt another valuable lesson that night: listen to the quiet voice inside. Intuition is the noise of the mind.

Dreams, though, are cheap, and the real task comes when you start putting in place the steps needed to make those dreams a reality.

As for my diet, I try to eat lean, clean and healthy - nothing too surprising. And I avoid too much meat or dairy because they slow you down.

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.

I loved climbing because of the freedom, and having time and space. I remember coming off Everest for the last time, thinking of Dad and wishing that he could have seen what I saw. He would have loved it.

Survival can be summed up in three words - never give up. That's the heart of it really. Just keep trying.

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.