Here’s what HRV is, how it works and what can cause it to rise or fall.

New research suggests the menstrual cycle may influence heart rate, stress levels and nervous system activity, highlighting ...

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 ...

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 ...

Menstrual cycle phases influence heart autonomic regulation, showing HRV variations, yet muscle performance and mood states ...

A team of obstetricians, gynecologists and data analysts from West Virginia University School of Medicine and the West Virginia University School of Public Health, working with colleagues from WHOOP ...

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 ...

Heart rate variability, or HRV, is quickly becoming one of the most important metrics in modern fitness, and for good reason. Unlike heart rate, which tells you how fast your heart is beating, HRV ...

Menstrual cycle or periods are instrumental in a woman’s life. Any irregularity is linked to hormonal imbalance or underlying conditions. A new study has found that the different phases of the ...

Menopause causes a drop in estrogen, which can lead to changes in heart rate, such as palpitations or fluctuations in heart rhythm. Menopause marks a significant transition in a person’s life, ...

Wearables can offer rough information about a person’s health, experts say, but only some metrics are medically useful.

It is easy to forget how much of an impact the smartphone has had on our daily lives and our society. About 91% of Americans ...