We may earn a commission from links on this page. The Powerbeats Pro 2 are a new set of headphones with a really interesting feature—Apple says they can measure your heart rate during workouts. Huge ...

Understanding your heart rate can be helpful to calibrate your perceived exertion, especially on easy and steady runs. This ...

Heart rate zones are a way to describe how hard you're working during a cardio workout, like running or cycling. The faster your heart beats, the harder you're working. So an easy jog might have you ...

VO2max is a measure of cardiovascular fitness, and many watches and fitness trackers can estimate it for you. Here's what you ...

Thanks to the proliferation of smartwatches and fitness trackers, it’s never been easier to log your heart rate while running: Simply don the device, start your workout, and watch those beats per ...

Remember when all a watch did was tell you what time it was? If you have an Apple Watch (or a similar wearable, such as a Google Pixel Watch or Fitbit Sense 2), you have a wealth of information about ...

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 ...

Whoever we are, whatever we’re doing, we have a measurable heart rate. It’s a pretty clear sign of being alive. But what should your heart rate be when exercising? When we exercise, our heart rate ...

Dr. Steve Hammill answers the question: 'What Is Sinus Tachycardia?' — -- Question: What is sinus tachycardia, and is it something that should be treated? Answer :Sinus tachycardia is the heart ...