I tagged along with a group of physicians, epidemiologists, nurses and techs to a little town about four hours south of Barranquilla. The drive was long. The weather was very hot. (How much is 42 Centigrade in Fahrenheit, anyway?) But what I got to see and learn will stay with me a lifetime.
When I ran the marathon back in 2005, I didn't remember finishing, really. I remember stepping on the timing mat, then nothing for a while before and after that. It's called "hitting the wall," and I was lucky that it happened to me right when I finished and with plenty of people to help me. [...]