While we may refer generally to ourselves or someone else as fit, there are many components of fitness. It’s a general term that lacks the specificity you might need to improve in your particular ...

Cardiovascular endurance can positively impact heart, body weight, and mood. It’s also vital for preventing chronic conditions and improving existing health issues. It’s a key component of fitness.

As part of an ongoing national research effort to better understand how physical activity improves health and prevents disease, seven University of Colorado Department of Medicine faculty members ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When I’ve finished a long run, my leg muscles feel like they’re ablaze. By the last few seconds of ...

Here’s an example. Running an ultra marathon requires endurance, because the goal is to maintain a steady pace for several ...

It’s widely known that exercise is beneficial for health. Yet science doesn’t have a clear understanding of what makes moving so good for us, including what molecular mechanisms are activated by ...

Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. One of my favorite quadrennial ...