Micro-fluctuations in the time between heartbeats are proving a helpful indicator of mental health, stress levels, exercise ...

Fitness trackers and smart watches are widely popular wearable devices that measure several types of health metrics, including step count, calories burned, sleep quality, Vo2 max and heart rate. As a ...

Your smartwatch may track HRV automatically, but age plays a major role in what counts as a healthy score ...

Knowledge is power when it comes to performance, these picks help you get it.

You probably check your step count religiously, maybe glance at your heart rate during workouts, and might even pay attention to how many calories your fitness tracker claims you’ve burned. But ...

The Google Fitbit Air is launched as a “proactive wellness partner” that comes with high-fidelity sensor technology for 24/7 ...

DEAR DR. ROACH: My heart rate variability (HRV) on my heart rate tracker has ranged from 12-14 ms for years now. I read that this means something is going on inside me. Do you have any insight into ...

What is heart rate variability (HRV)? As popular as the metaphor may be, a healthy heart doesn’t beat as regularly as a metronome. In fact, it changes its rhythm with each beat. Heart rate variability ...

Heart rate variability has become the wellness scene’s favorite recovery score, but experts say most people misunderstand the ...