Keith Burgess-Jackson, J.D., Ph.D.

I'd like to wish my big brother, Glenn, a happy 55th birthday. Glenn was quite the runner in high school, both in track and in cross country. His varsity jacket had so many medals on it that I could barely lift it. As far as I know, Glenn hasn't run since high school, though he cycles. I didn't run at all until 1996, when I was 39. I've been running like a fool ever since. In a few days, I will do my 2,000th run.