What is Heart Rate Variability (HRV) & why does it matter?

Firstbeat blog will discuss heart rate variability (HRV) from a practical perspective: what it is, what it can tell you about your body’s physiology, and what you should be aware of when interpreting it.

HEART RATE VARIABILITY (HRV) - Wellness Embodied

Can heart rate variability be measured by simply analyzing the BPM variability over time (e.g. 5 mins) or does it have to use the RR metrics (variability between the peaks)? - Quora

How Stress Trackers Can Help You Stay Calm

High heart rate variability is seen as a healthy thing, while arrhythmia is potentially deadly. What is the difference between HRV and arrhythmia? - Quora

Everything You Should Know About Heart Rate Variability (HRV)

What is heart rate variability? How do you control it? - Quora

Can heart rate variability be measured by simply analyzing the BPM variability over time (e.g. 5 mins) or does it have to use the RR metrics (variability between the peaks)? - Quora

Ultimate Guide to Sleep Recovery for Athletes

Resting Heart Rate, Heart Rate Variability: What's Optimal, 1600+ Days of Data