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, ...

Applying SPF to the lips will help limit repeated exposure to ultraviolet rays from the sun. Excessive UV exposure can, in very rare cases ( less than 0.1 percent of the United States population), ...

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

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

Calorie deficits, fluid loss, and the shocking recovery demands of ultradistance trail running, according to a new study.

We spoke to a 'Back to the Frontier' couple to find out what it was like to live off the land without any modern conveniences ...