The sharp, cramping, tugging pain in the side, known as stitch, is experienced by 70% of runners[1]. It can deter beginners from continuing running and force more experienced runners to stop or considerably slow down during races. Marathon star and Olympian Meb Keflezighi says he has lost races to stitches[2]. So what is stitch, why … Continue reading Stitch – what is it and how to prevent it?