The research, published today in Current Biology, showed that ultramarathoners can burn an astounding 11,000 calories per day ...

You could say Conner Mantz has been running toward record-breaking finishes ever since he entered elite competition. Just ...

Crank up the tunes: You can take your run/walks to the next level with our tailored playlist. The 26-song playlist alternates ...

In the heart of winter, a small sailing crew departs from the snow-choked harbor of America’s snowiest town, where ...