Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a recent study. Although the duration and long-term implications of the ...

Welcome to Trail Tested, a new monthly column from entrepreneur and athlete Jack Espy as he trains for the grueling Leadville 100 ultramarathon this August. Trail Tested will follow Jack along his ...

New research shows that even seasoned ultramarathoners face profound energy loss, muscle breakdown, and shifting hormones during real-world races, with the longest distances driving the most punishing ...

A smartwatch has become an essential part of the kit for any seasoned runner. Last year, wearable shipments hit 543 million units – a 6.1% increase from 2023 – proving these gadgets are really hitting ...

Imagine this: You come home after a run and take off your shoes. Instead of walking around barefoot, you put on some recovery slides that both support and cushion your feet. Then, you head to the ...