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.

When I'm filming, survival requires movement. You need your energy, and you've got to eat the bad stuff, and survival food is rarely pretty, but you kind of do it. I get in that zone, and I eat the nasty stuff, but I'm not like that when I'm back home.

I find skydiving really hard. I broke my back while skydiving when I was in the military, and for 18 months all my nightmares were about falling.

The lesson is, the rewards in life don't always go to the biggest, or the bravest, or the smartest. The rewards go to the dogged; and when your going though hell, to the person who just keeps going.

I've had so many injuries in my life that it's ridiculous.

I never wanted to do TV. I just did what I was trained to do through the Special Forces, and I've been doing that from a very young age.

The rules of survival never change, whether you're in a desert or in an arena.