Many data-driven runners have a grasp on common heart rate metrics, like resting heart rate, maximum heart rate and heart rate zones. But there’s another, often undervalued data point worth keeping ...

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

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

Photo illustration: Graham Bower/Cult of Mac Apple’s VO 2 max metric measures the performance of your heart and lungs when you push yourself to the limit. Up until now, though, it’s only been useful ...