Previous theories, most notably the Central Governor Model developed by researchers at the University of Cape Town and ...

High altitude, lake breezes, northern latitude, and ocean fog keep high temps in the mid-70s in these adventure-packed spots in the U.S.

From toenails to bodily functions, there are some questions about ultramarathons that we've been too afraid to ask. That is, ...

Practice, practice, practice.” This quip popped to mind when I was reading a new study about the caloric requirements of ...

“I’ve seen running help immigrants and refugees feel a sense of belonging in the U.S. Running provides a place where, with ...

Stand with your feet hip-width apart and a light dumbbell in each hand with your palms facing towards your body. Keeping your ...

According to local reports, Baumgartner was piloting a paramotor —an ultralight aircraft that uses a wing-like parachute—when ...

Two years after our colleague argued the merits of the tiny dogs, a glacier rescue in Switzerland adds considerable clout to ...

Officials in Arizona and Colorado have closed huge swaths of parkland to visitors after lightning-sparked blazes destroyed ...

More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for ...

By far the most common cause of death among trail runners is cold weather and hypothermia. This isn’t surprising, especially ...

Officials say a 60-year-old woman was found approximately six miles into the race. Her cause of death is unknown.