The challenges of marathon running can lead to awe-inspiring and sometimes silly circumstances. Marathon athletes frequently deal with pooping during the race, and aren't afraid to share the details.

To keep up her pace, Tamara Torlakson relieved herself mid-marathon without stopping. She doesn't regret it: She ended up beating her best time 13 months postpartum. Running can trigger the bowels for ...

Athletes have shared four harsh realities of marathon running that almost everyone faces. The London Marathon will see an estimated 56,000 participants take on the 26.2 mile challenge from Greenwich ...