Life's full of lots of dream-stealers always telling you you need to do something more sensible. I think it doesn't matter what your dream is, just fight the dream-stealers and hold onto it.

I think fire is so critical in the wild. You can cook with it, you can make tools, you can deter a predator, you can dry your clothes and you get that element of morale that matters so much when you're stuck in the middle of nowhere.

It's unresolved conflict in my life that I have a lovely family and a risky job.

To get ready to climb Everest, I did a lot of hill running with a daypack on and a lot of underwater swimming. I would swim a couple of lengths underwater and then a couple above. It gets your body going with limited oxygen.

When I'm in 'Man vs. Wild' mode, it's not pleasure. Every sensor is firing and I'm on reserve power all the time and I'm digging deep - and that's the magic of it as well, and that's raw and it's great.

Exercise helps my back. If I don't exercise, that's when it starts to hurt. The pain is a good motivator to run and exercise.

When you find yourself thinking about someone or something in the same old negative way, just stop yourself. Think. Check. Change. Refresh. Job done. Smile. Move on. Do this enough times and you will change. For the better; for the stronger.