You can't be a parent and say, 'I need you to be more active and I need you to eat right,' when you're still choosing to have poor eating habits.

CrossFit is all about constantly-varied, high-intensity movements. And to do these movements, you have to have a certified coach to take you through this - or any type of physical activity.

Whatever the parents are doing, the kids will follow suit.

If you want to be right-sized in body, you've got to get rid of the supersize way of life.

The CrossFit program is broad, general and inclusive, and most of all, the movements can be scaled down to any level of athlete. Just watch what I do with it on 'The Biggest Loser.'

Our external environment no longer seems to have any firm boundaries, any limits, or any positive cues about when to stop consuming anything. I mean, there is a reason that people get fat - it's easy and cheap to get high-calorie, tasty food.

By default I am the good parent. I've used my own personal experience. I came from a world where I was in need and starving for the good parent, so it's like I'm bringing my own persona issues into that. I am the parent that I always wanted to have; that's how I look at my role.