What is heart rate variability (HRV)?
Heart rate variability is where the amount of time between your heartbeats fluctuates slightly. (2)
HRV is the abbreviation for heart rate variability. (2)
The normal beating of your heart is called “sinus rhythm”. (3)
When the heart is beating normally but the variability between heartbeasts is greater than 0.12 seconds, this is called “sinus arrhythmia”.
Resources
1. https://www.bryanjohnson.co/articles/project-blueprint
2 https://my.clevelandclinic.org/health/symptoms/21773-heart-rate-variability-hrv
