Athlete. Runner. Marathoner. Are these words you wouldn't exactly use to describe yourself? Do you consider yourself too old or too out of shape to run a marathon? But somewhere deep inside have you always admired the people who could reach down and come up with the mental and physical strength to complete such a daunting and rewarding accomplishment? It doesn't have to be somebody else crossing the finish line. You can be a marathoner. The Non-Runner's Marathon Trainer is based on the hig...