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

Heart Rate Variability, often shortened to HRV, has become one of the most popular recovery metrics in fitness. While resting heart rate tells you how many times your heart beats per minute, HRV ...

Your blood work looks great! Your cholesterol, A1C and fasting glucose are all in the healthy range. But your fitness tracker ...

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 ...

First study to link lower resting heart rate variability with sexual difficulties in women Chances are good that women with a low heart rate variability also suffer from sexual dysfunction. That's the ...

Fitness trackers give us unprecedented information about our health, especially when it comes to our hearts. Doctors explain ...

Tracking key heart health metrics every day helps you understand how your lifestyle affects your cardiovascular system and empowers you to take proactive steps toward better heart health. Heart ...

Carley is a writer, editor and social media professional. Before starting at Forbes Health, she wrote for Sleepopolis and interned at PBS and Nickelodeon. She's a certified sleep science coach and ...

That little number on your fitness tracker might be more important than you realize. Your resting heart rate isn’t just some random vital sign. It’s essentially a window into how efficiently your ...

Objective Identify key determinants of heart rate variability (HRV) in male athletes aged 14–21 years participating in competitive contact sports and integrate these determinants to define normative ...