A new approach to endurance training involves inhaling carbon monoxide—and is reviving old debates about dying to win.

Sauna use stimulates heat adaptation that enhances stamina, delays fatigue, and improves performance. Learn how passive heat ...

High-rep training typically refers to sets of 12 reps or more. For a long time, it’s been pigeonholed as the go-to method for ...

Why it works: This is one of Ripps’ favorite fartlek workouts for new runners because there’s no timing, no specific pace, ...

In fact, boosting speed endurance is why most training plans include one to two weekly speed workouts.

Discover 8 powerful exercises that transform your body in only 10 minutes daily. Get fit fast with these time-efficient ...

Eight months of supervised marathon training in Finnish adults led to moderate reductions in peripheral diastolic blood ...

Discussions of strength often mean brute force and sprint speeds — qualities associated with male physiology. But female ...

Strengthen your body and improve stamina with this trainer-approved low-impact workout that’s easy on your joints.

What Is Taurine, Really? Taurine is an amino sulfonic acid. Not technically an amino acid, but it walks, talks, and acts like one in the body. It’s found in hig ...