When most people think about donating body parts to science or medicine, they might think of life-saving donations of organs, tissues or blood. But you can also donate your poo. The idea is to use it ...

Erin Beresini is a journalist covering fitness, endurance sports, and health science. She is the author of ‘Off Course: Inside the Mad, Muddy World of Obstacle Course Racing.’ New perk: Easily find ...