Here’s why some muscle groups respond faster (or slower) to strength training—and what you can do about it.

Still dealing with a tight hip or weak glute—despite all the foam rolling, stretching, and strengthening? Or, maybe you’ve had an injury that keeps flaring up, even though you thought it was finally ...

Before Adam Sharples became a molecular physiologist studying muscle memory, he played professional rugby. Over his years as an athlete, he noticed that he and his teammates seemed to return to form ...

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign up here to get it in your inbox. Despite what many workout equipment ...