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Smartwatches commonly use heart rate variability to monitor stress. Columnist Helen Thomson explores what this metric ...

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 ...

In today’s era of self-optimization, everyone is seemingly obsessed with longevity and improving their own healthspan. Thanks ...

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 ...

I’m stressed” is a phrase that many of us use, but now there are ways to shed light on how stressed you actually are ...

Heart rate variability (HRV) is the variation in the time between two consecutive heartbeats over a specific period. Doctors may use HRV as an indicator for certain aspects of a person’s health, ...