After a long trail race, some of your red blood cells may not bend the way they should. That matters because red blood cells have a tight job description.

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a study published in the American Society of Hematology's journal Blood Red ...

I’m covered in mud. Wet, sticky, mud. And blood, and salt from sweat and tears. But I’m still moving. Hobbling like I’m headed to breakfast in a nursing home, but moving, nonetheless. The wind blows ...

Everyone knows Wisconsinites love their Kwik Trip. But these Kwik Trip enthusiasts, who also happen to be ultramarathon and trail runners, are preparing to take their love for the gas station to a new ...