I have so much to learn when it comes to running. I just don't ever want it to feel like a chore. When I choose to sign up for a race or go out for a run, it's to make myself feel good, and I almost always do.

That's what I love about running - I feel like we all celebrate each other. Even if you're racing somebody at the finish, it's like you're in it together.

You can't go wrong with some nuts. The key word is 'some.' Eat them one at a time, not by the handful.

A great way to get all the right nutrients is to make a colorful plate - mix of good vegetables, carbohydrates, and protein. If you notice all your vegetables are green, change it up and add another color for a variety of benefits in one meal.

The kids know what I'm doing when I exercise, and that's powerful. So don't just tell your kids to go play outside. Take a moment off your computer, put on your tennis shoes, hop outside and help them start their game and run off some energy.

Don't just tell your kids to be active and to get outside and play. Lead by example.

Tennis is interesting because the women are almost more popular than the men. In the U.S. Open, women even get exactly the same money as the men.