Life has taught me to be very cautious of a man with a dream, especially a man who has teetered on the edge of life. It gives a fire and recklessness inside that is hard to quantify.

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 SAS Reserve tends to be made up of former paratroopers and commandos who still want a challenge, but it is open to civilians.

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.

I joined the Army at 19 as a soldier and spent about four and a half years with them. Then I broke my back in a freefall parachuting accident and spent a year in rehabilitation back in the U.K.

Our achievements are generally limited only by the beliefs we impose on ourselves.

The extremes of jungles, mountains, and deserts are inherently dangerous places.