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How to eat for muscle vs. endurance.
20 things your bro doesn't know about lifting.
Get your heart pumping and your muscles fired up.
Add mass fast with this intense chest workout.
6 crucial exercises from a professional obstacle racer and trainer.
Get washboard abs in less time than it takes to do, well, anything.
Grab a set of dumbbells and prepare to sweat—a lot.
A look at the sports science behind Eliud Kipchoge and Breaking2.