Average HRV by Age for Women, Decade by Decade
Women in their 50s typically see rMSSD trend down from the 35-70 ms range of their 40s toward 20-45 ms in their 60s, based on HUNT Fitness Study data.
Hrv (Lab Test)
16 source-based articles maintained by the HealthRX.com Editorial Team.
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Jul 14, 2025latest review
Hrv (Lab Test) library
Showing 16 of 16 clinical reviews.
Drugs That Distort Heart Rate Variability (HRV): What Skews Your Results
Beta-blockers increase HRV: metoprolol raised SDNN by 34% and RMSSD by 28% in a 2003 study, but the rise is pharmacological, not improved autonomic health.
Heart Rate Variability (HRV) Longevity-Medicine Target Ranges
Learn what HRV scores indicate optimal autonomic health, how age and sex affect targets, and what longevity medicine considers the ideal HRV range for recovery and lifespan extension.
Heart Rate Variability (HRV) Rate-of-Change Interpretation
A guide to interpreting HRV rate-of-change trends, normal ranges, optimal targets, and what rising or falling HRV means for autonomic nervous system balance and recovery.
Heart Rate Variability (HRV): At-Home and Finger-Prick Testing Options, Normal Ranges, and What Your Score Actually Means
Everything you need to know about measuring HRV at home, including wearable devices, finger-prick ECG tools, normal HRV ranges by age and sex, and how to interpret your results for recovery and autonomic health.
Heart Rate Variability (HRV): Medication-Driven Changes Explained
A clinical guide to how common medications alter heart rate variability (HRV), what the normal and optimal HRV ranges are, and how to interpret medication-driven HRV shifts in the context of autonomic nervous system health and recovery.
Heart Rate Variability (HRV): Nutrition and Fasting Impact
How diet, meal timing, fasting protocols, and specific nutrients affect heart rate variability (HRV), with normal ranges, optimal targets, and evidence-based strategies to improve ANS balance and recovery.
Heart Rate Variability (HRV): Sex- and Cycle-Related Differences Explained
How biological sex, estrogen, progesterone, testosterone, and the menstrual cycle shape HRV, with normal ranges, optimal targets, and clinical guidance backed by primary literature.
Heart Rate Variability (HRV): Training and Exercise Impact
How exercise changes your HRV, what counts as a normal HRV range, and how to use HRV data to guide training load, recovery, and long-term cardiovascular health.
Heart Rate Variability (HRV): What Your Number Changes About Your Treatment
HRV is more than a fitness tracker metric. Learn how your heart rate variability score directly shapes medication dosing, therapy selection, and clinical monitoring in hormone and metabolic care.
Heart Rate Variability (HRV): Which Tests to Order Alongside
A guide to the lab tests and biomarkers you should pair with HRV monitoring for a complete picture of autonomic, metabolic, and cardiovascular health.
How to Improve Heart Rate Variability (HRV): Evidence-Based Methods
A guide to raising HRV through exercise, sleep, breathing protocols, nutrition, and stress management, with specific studies and dosing.
HRV Meaning: What Your Heart Rate Variability Number Means
HRV meaning explained: 20 to 80 ms RMSSD is typical for healthy adults, over 100 ms for athletes, below 20 ms linked to higher cardiovascular risk.
SDNN Normal Range: 100-150 ms and When to Order HRV Testing
Normal SDNN is 100 to 150 ms in healthy adults under 60 on a 24-hour recording. See low HRV thresholds and when clinicians order this test.
Shaffer & Ginsberg 2017 HRV Norms vs Optimal Ranges
Shaffer and Ginsberg's HRV norms show RMSSD 15-100+ms; optimal is upper-quartile, 40-100ms under 50. See age-matched SDNN and RMSSD targets explained.
What Is Heart Rate Variability (HRV)?
HRV measures millisecond changes between heartbeats, reflecting sympathetic-parasympathetic balance. Normal RMSSD ranges 20-80+ ms, declining with age.