Every runner knows how important it is to prevent an unfortunate bathroom accident midrun. Runner's World How to Make Yourself Poop can show you how. For any runner who wants a quick, easy reference guide to every running issue under the sun, look no further. With tips on training, nutrition, gear, motivation, health, and racing, Runner's World How to Make Yourself Poop is essential reading for runners who want to improve their performance. From "The...