Other than a solid, mood-boosting sweat session, what do you want from your cardio training efforts? Is it heart health, stamina, endurance, physique, sport performance or something else? Your answer ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. Zone 2 training is a type of cardio exercise where you use your heart rate as a guide to help you find the right intensity for your ...

A minute ago, high-intensity interval training (HIIT) was king. Now that gut-it-out-and-get-the-glory work might need to share the crown with slow and steady efforts, thanks to what they do for your ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. When you track a ...

Zone 3 is kind of like the goldilocks of run training: It’s not too fast and not too slow. Instead, it’s an in-between effort often described as “comfortably hard.” “Zone 3 training is great,” Brant ...

When it comes to fitness, there's always something new (and fun!) to learn about – and right now, zone 2 training is a hot topic of conversation. But what actually is zone 2 training, which exercises ...

Zone 3 is kind of like the goldilocks of run training: It’s not too fast and not too slow. Instead, it’s an in-between effort often described as “comfortably hard.” “Zone 3 training is great,” Brant ...

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 ...

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 ...