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 ...

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 ...

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

Wearables measure several aspects of health, and heart rate variability might be one of those. It may be surprising when your device informs you that your heart rate variability is high or low, but ...

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