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 ...

Researchers report in the January issue of the journal Cell Metabolism, published by Cell Press, the discovery of a genetic "switch" that drives the formation of a poorly understood type of muscle.

Can muscles remember their younger, fitter selves? Muscle physiology lore has long held that it is easier to regain muscle mass in once-fit muscles than build it anew, especially as we age. But ...

A research team led by Prof. Chen Yan and Prof. Yang Lifeng from the Shanghai Institute of Nutrition and Health of the Chinese Academy of Sciences revealed a physiological function of monocarboxylate ...

It's no secret that strength training is the single most effective way to build muscle (well, that and getting your fill of protein), but if you play your cards right, even your cardio routine can ...