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.

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

The more sleep you get in before the clock turns midnight, the more rested you feel no matter what time your alarm goes off.

Daily repetition matters when a kid is learning to swim. It can be 20 minutes in a lesson or an hour practicing for a couple of weeks.

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.

Boston is the cream of the crop of the marathon world. It has such history that you feel such honor just being a part of it. All the other races have pacers to get you to a Boston qualifying time.

For me, music makes my smile brighter during my workouts. It adds that extra something that motivates me to go further or work harder!