When I was in high school, I remember sitting on my bedroom floor, devouring the newest edition of Runner’s World. The main article was titled something along the lines of “Running like Hell” or something. The accompanying photo was a bit jarring, showing a handful of runners who appeared to be in their 50’s and 60’s who looked nothing like road runners. They looked gritty, scrappy, and lacked any kind of sheen that road runners…