You don’t need all-promising pills, diet hacks, or hours of tedious (and dubious) brain games. Running can quite litereally turn your body into a younger version of itself.

A complete guide to becoming an efficient, energetic a.m. runner you’ve always dreamed of being—or become an even better one.

One of the craziest speed records in ultrarunning takes athletes from the top of the canyon, down to the bottom, and then all the way back up again—twice.

In short, nothing good—and just one bad night can trigger a cascade of scary side effects

On learning to conquer my claustrophobia

Ultramarathon running draws a particular type of athlete—one who has plenty of free time, doesn't mind pain, and is also white.