Your heart rate zones might be completely wrong. Not only are zones defined differently in different apps, they are also ...

What Is Heart Rate Variability? Heart rate variability is the variance in the timing between each heartbeat, says Dr. Mo. She ...

Have you ever watched the starting line of a race and wonder why everyone’s heads are down, staring at their arms? They ...

Running watches ... most of your workouts with specific features that help you improve your overall performance. A good running watch will pack all the basic tracking features including GPS, heart ...

So when I set my Apple Watch to keep me in zone 2 during ... Ultimately, this is probably the most accurate way of using heart rate to determine exercise intensity: figure out the intensity ...

Our goal is to deliver the most accurate information and the most knowledgeable ... While not perfect, sleep trackers can measure heart rate, skin temperature, and time spent in each sleep phase.

If you're against wearing a chest strap, the Wahoo TICKR FIT armband is a very viable alternative if you don't mind it being ...