The company's library of studio exercise classes, integrated with on-screen fitness data from your Apple Watch, launches today. Our Sweat Science columnist takes it for a spin.
When you stop breathing, oxygen flowing to your brain actually increases—at least for a while
The mental and physical benefits make it worth the extra effort
To pick their two-hour marathon team, researchers tested some of the greatest runners on the planet. Now they're revealing what they found.
Bust your gut like the gold-medal-winning cross-country skier
A new review sifts through the evidence for and against hiking with poles
Proven tips from top athletes on how to nail the perfect morning adventure
This expert advice will help you get out of a rut and take your skills to a new level
Five simple strategies to stay motivated as the seasons change
How the practice continues to comfort the former big-wall climber after a life-changing spinal injury
The disruptions of 2020 mean that there’s an unusually large crop of endurance-related books hitting shelves this fall
A new analysis casts doubt on the idea that people are born as "responders" or "non-responders" for training in thin air
A handful of apps are rebranding the menstrual cycle as a female athlete's untapped superpower. Here's what you need to know about them.
We’ve partnered with WHOOP and Tracksmith to create a first-of-its-kind running recovery program—and we want you to join.
Keep your fingers, shoulders, and back happy with these nine strength and mobility moves
After an exhaustive search of the literature, researchers conclude that, well, it's complicated
The hotter it is, the closer we come to the ever elusive goal of besting the horse—which supports the evolutionary "born to run" hypothesis