When I do get time, I like to hike and I take lots...

The main prank that we play with props is for people's birthdays. The special effects people will put a little explosive in the cake so it blows up in their face - that's always fun to play on a guest star, or one of the trainees or someone who's new.

We're just into toys, whether it's motorcycles or race cars or computers. I've got the Palm Pilot right here with me, I've got the world's smallest phone. Maybe it's just because I'm still a big little kid and I just love toys, you know?

I get letters from kids, teenagers and young girls who just want to be Mac. I've had quite a few people actually say that they're going to become a Marine or a JAG lawyer because of me... the character. I think that's pretty cool!

We talk a lot on 'Biggest Loser' about how fitness is a natural antidepressant, how it burns off stress. What I like about running is that it gives me time alone. I'm always busy, with people at work, with my kids. I love getting out for a run by myself and just listening to my music.

I personally love to run outdoor fitness trails. I love the meditative value I get when out alone, challenging myself to run faster and higher.

With fitness, I do Bikrams hot yoga. The gym that I have in my building is amazing. I love to do cardio and weights there.

I think exercise tests us in so many ways, our skills, our hearts, our ability to bounce back after setbacks. This is the inner beauty of sports and competition, and it can serve us all well as adult athletes.