Your Heart Knows What Your Doctor Missed

The one biomarker that reveals why you're exhausted, wired, and told everything is normal

Dr. Szal HRV Guide

Your HRV dropped 30% during perimenopause and nobody mentioned it.

Not your primary care doc or gynecologist, and definitely not the physician who said your fatigue is stress.

Heart rate variability is the most sensitive measure of your autonomic nervous system's capacity to handle modern life. It plummets during hormonal transitions. It tanks under chronic stress. And it predicts cardiovascular events better than most conventional markers.

The problem? Standard medicine doesn't measure it. They measure disease, not optimization.

I created this guide because women deserve to understand what their bodies are signaling before conventional medicine classifies them as diseased. Inside, you'll discover:

  • Why your HRV tanks during perimenopause while men's declines gradually
  • The inverse relationship between resting heart rate and autonomic flexibility
  • Why women show lower HRV under stress despite higher baseline vagal tone
  • Evidence-based protocols that actually increase HRV (hint: it's not just meditation)
  • How to interpret your Oura/WHOOP data in the context of female physiology

This is precision medicine for the variables conventional medicine ignores.

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Educational only. Not medical advice.