Add Yahoo as a preferred source to see more of our stories on Google. Understanding our body’s target heart rate zones and how they change as we age is crucial for getting the most out of our workouts ...

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

Whether you use an armband or chest strap, add some smarts to your exercise and training routine with one of the best heart rate monitors we've tested. I'm PCMag's managing editor for consumer ...

Keeping track of your heart rate while working out is now easier than ever, thanks to wearables like smartwatches and fitness trackers. However, the gold standard for heart rate data is a chest strap ...

When you track a strength training workout on a fitness watch, that watch will happily tell you what heart rate zones you were in during the workout. In fact, they'll do that for any workout, whether ...

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 ...

Training smart means mixing up the intensity of your runs – not just going out all-guns blazing on every effort. But distance, time and pace are all blunt tools for measuring effort, which is where ...

Understanding our body's target heart rate zones and how they change as we age is crucial for getting the most out of our workouts. If your goal is to burn fat, for example, you'll want to stay in ...