You've filmed hundreds of different workouts. What's your absolute favorite?
Chest and Back – any kind of workout where you're doing constant pull-ups and push-ups, to the point where you just want to hurl.
That and Yoga X, because yoga saved my life, absolutely. It was the most important step in my process of learning about exercise. Yoga is the fountain of youth, there's no question about it. It's a monster. The reason yoga is in there is that it's that thing you're in fear of, to some level, be it patience or range of motion or balance or strength. It's like running on your hands, you know. It's just hard. But the idea here is to keep pushing. Look at P90X – it forced you to work on your weaknesses, and so many people hit that wall and then said, "OK, I'm out. I'm always going to gravitate toward something easier." But the thing you despise the most is the most important. That's why I started doing Pilates – I was so horrible at it. And the reason I'm as well-rounded as I am athletically is because I keep doing things I stink at.
You're serving as Honorary Race Marshall at the National Press Club's 5K on Sept. 7. What will you eat for breakfast beforehand?
I'll have my usual steel-cut oatmeal with water, blackberries and blueberries – no salt, no sugar. And then I'll probably have four or five egg whites scrambled with sautéed onions, peppers and basil – double the basil – and I'll throw some slices of avocado on top of that. I'll probably skip the toast. That's pretty much what I have most days, except just the oatmeal, or maybe a shake.
Earlier this month, you led workouts aboard the Intrepid Sea, Air & Space Museum in New York. Why is working with the military important to you?
I've been on 36 military tours around the world, from Japan to Kosovo, from Germany to the Netherlands. I'm doing four bases in Florida in October. And what do they pay you to do these things? Zero. You do it because it's the right thing to do. If you really want to grow and expand and change things, you make time in your schedule to volunteer. Altruism is really important and, ultimately, 10 times more fun than the rest of the stuff.
How many pull-ups can you do without stopping?
I can do 40. Here's a challenge to anyone out there: We do a fun routine called 30-30. How quickly can you do 30 pull-ups and 30 push-ups? My best is one minute flat.