The newly revamped TrainerRoad cycling app uses an advanced algorithm to create training programs custom-tailored to the user. Our writer gave it a go.

Sal Masekela, first son of a Haitian immigrant and a legendary South African jazz musician, was the face and voice of the X Games, Red Bull’s Media House, and the Olympics. Now, as the meteoric growth of the action-sports industry comes back to earth, the most connected man in the room is left wondering what’s next.

Last November, Conrad Anker suffered a heart attack at 20,000 feet. Did the altitude have something to do with it?

A new study found that our kids are among the least fit in the world—and our unequal income distribution likely has something to do with it

Say you see an article about how chocolate can prevent aging. You want to figure out what's actually going on, so you pull up the original study. Here's how you properly read it.