To build muscle, you need to train heavy. Here, a fitness expert explains how you should approach your weight selection for ...

To build muscle mass, you need around 1.2–1.7 grams of protein per kilogram of body weight or 0.5–0.8 grams per pound of body ...

You might not aim for 125-mile weeks, but strategic recovery, easy miles, and quality long runs can boost your performance.

Not sure which exercises you should be doing during your regular workouts? These are the ones fitness experts recommend.