A top plastic surgeon has stunned fitness fans with a brutal takedown of one of the world's most popular workouts - warning people to ditch running immediately if they value their joints, skin and ...

If you’re a long-distance runner, you’ve probably heard the phrase running economy tossed around a time or two. But what does it actually mean, and why does it matter for performance?While our team ...

How one man who hated cardio used the artificial-intelligence chatbot to write workouts for him. Now he loves running.