Today, the top endurance athletes in the world set out on a 135-mile race through Death Valley, one of the hottest places on earth.

Marshall Miller calls himself a “human flight specialist,” and he’s teaming up with GoPro Cameras to capture some of the wildest rides on earth.

Watson is the head trainer with the Los Angeles Sparks, and she also runs an internship program that trains high school and college students to become athletic trainers.

The premise is simple. Set out on a course and run the required distance on different terrains. So how did cross country, a sport that is so simplistic, gain such traction to become an international sport?

High tech testing is not just for the pros, and it will make a difference in your diet and exercise program.

The largest 5K in the United States is The Color Run, a 5K where runners are sprayed with safe colored powder. Color Runs, Graffiti Runs, and similar 5Ks are sweeping the nation. Read more to find out what they're all about!

Night-riders have taken over the streets in many urban areas across the country, as cyclists are socializing and exercising at the same time while artfully expressing themselves.

The size and power of a racehorse is awe-inspiring. So is the size and power of the jockey. Controlling a 1,000-pound animal isn’t easy, and it isn’t for everyone.