Running was a part of my hardwiring, and that's what I wanted to do. So this is what I tell people who talk about wanting to follow their passion. 'It doesn't have to be running. It can be basket weaving. Be the best basket weaver in the world. Throw your heart and soul into it.'

I have my whole office set-up at waist level; I don't sit at all during the day. Sitting, to me, is the devil.

Yes, my dad's a marathoner. He used to do sprint distances and then started marathoning. My mom is an endurance animal. She does three-day events like the Susan G. Komen three-day walk.

Unlike running on a road or concrete, natural surfaces are more forgiving and offer a more varied terrain, ultimately resulting in less repetitive micro-trauma to bones and joints than running on hard pavement does.

I eat nothing that's processed or refined - no high-fructose corn syrup, no sugar, no trans-fats. I eat a lot of fish and monounsaturated fats from olives, olive oil and nuts. A lot of organic, fresh fruits and vegetables. No bread. No gluten. No wheat. No rice.