VO2 max is an intimidating word for an easy-to-understand biometric: It’s how well your body uses oxygen when you push ...

I just hit 20,000 steps!" my husband exclaims as he brags when his fitness tracker exceeds the oft-heard benchmark of 10,000 ...

High-intensity interval training is important, but coming back to your breath can be crucial to helping you train.

Choosing your pace based on threshold is more effective than calculations based on maximum heart rate, research shows.

These are places we may love to visit, but for Kílian Jornet, this is where he is most at home. Jornet, 38, is a professional ...

Lack of time is often the main reason people don't exercise regularly. But a type of interval workout recently popularized by ...

OK, maybe not forever. But this four-workout-per-week plan can reduce your risk of death by about a billion percent. And it ...

Research shows that some exercises are better than others for longevity. Experts explain the best exercises for longevity, ...

A combination of cardio and strength training is crucial for heart health, muscle strength, and healthy aging.

New research shows the 4x4 workout format can improve fitness faster than traditional workouts, such as jogging or cycling ...

How the tobacco industry rebranded a brutally addictive drug from deadly to desirable—and what it means for our health.