The definition is tricky, but the effects of poor metabolic health are clear — and can wreak havoc on the body.

Is soft cardio the missing piece of your workout routine? We spoke to a sports medicine physician and a pro trainer to find ...

Running raises heart rate, improves VO₂ max and strengthens the heart more efficiently than most sports ...

A trainer offers a tip for whether you should opt for cardio or strength training when you only have five minutes to spare.

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

Walking? Lifting weights? Does it matter what zone you’re in? I have answers.

There is a pervasive myth in modern fitness that optimization requires suffering: that if you aren’t gasping for air or ...

The American College of Cardiology found uneven gains and sobering declines in heart health. "You can't treat your way out of ...

Swimming is a low-impact workout that also targets multiple muscle groups. “In just 30 minutes of swimming, an average person ...

A new study raises questions about how financial stress fits into cardiovascular health. Dr. Leana Wen explains what people ...

After a century of progress that cut deaths from cardiovascular disease in half, momentum has stalled. Heart disease and stroke remain the leading causes of death worldwide, mortality rates are ...

Slow running has been emerging as an unexpected way to run faster over long distances. Easy, conversational-pace runs can ...