Alex Honnold’s life is in his hands—those freakishly large palms and sausagelike digits, with fingerprints eroded away from years of wear. Here's how he gets those hands in shape to conquer the world's biggest cliffs.

Heart rate variability can be helpful for recovery and fatigue management for athletes, and the LifeTrak Zoom HRV fitness tracker is bringing that technology to consumers.

Obstacle Course Racing could be the next Olympic sport, as the IOC looks to bring fresh energy and relevance to the Olympic games with new competition.