To gastroenterologists, the concept of a germ causing ulcers was like saying that the Earth is flat.

If humans evolved in a tiny area of Africa, they only saw plants and animals within a 100-kilometre radius for a million years. When they began to migrate, there would have been different animals and plants - and potentially a lot of allergy issues.

The politics have always been difficult in medicine. There is some truth in the way medical practice is portrayed in TV dramas.

You can always find stress in someone's life if you want to. You ask a few questions, and eventually, it's, 'Yes, I admit, I was worried about something recently.'

Fighting, for me, is not a career - it's an opportunity. I'm going to take full advantage of it and do it as long as I can. As long as my body lets me and I'm healthy enough to do it naturally, I'll do it.

When my writing career took off, it was pretty easy to keep my ego in check because old-school martial arts isn't about ego gratification. It's about maintaining a balanced view of the world and your place in it.

My job is to be fit and I'm really blessed that I get to go and work out and live a really healthy lifestyle.

I feel like I'm going to be with the Cowboys the rest of my career, definitely. I love it.