As I ran past a group of youngsters waiting for the bus in my neighborhood this morning, I heard a child ask, "Why do people run like that?" I wasn't sure if he were talking to me or not, so I waited then called back, "to stay in shape."

I run for a lot of other reasons. I love the runner's high. I love sweating, when I am running. I feel cleansed by it. I run because for so many years, I couldn't run. Although I enjoyed walking and cycling, I just didn't feel as great as I do when I run.

Why do you run?