These days, everyone from the average Susan to the hardcore data-loving wellness enthusiast has the technology to track just about anything in the name of self-optimization. A ring wearable tells you ...

We have just the formula you need to sort what your heart rate training should look like.

For when you need to be in "zone 2" and have no idea what that is.

Anyone who has ever climbed aboard a treadmill or elliptical trainer at the gym is familiar with the little charts or electronic displays that provide information about "maximum" or "target" heart ...

Running in zone 2, by definition, should feel easy. And that’s a good thing, considering zone 2 runs make up the majority of any good training plan. These easy efforts serve as the building blocks for ...

Your heart rate can tell you a lot about your fitness and cardiovascular health. Your heart beats consistently, day in and day out, but you may not generally pay close attention to it. You might take ...