HRV
Evidence-based articles on hrv — written for entrepreneurs, executives, and high performers who want to close the gap between what they know and what they consistently do.
Hormetic Stress Thresholds: How to Know When You're in the Zone — and When You've Crossed It
The same stressor that builds resilience at the right dose destroys it at the wrong one. Here's how to read the biological signals that tell you which side of the curve you're on.
Eathan Janney, PhD
What Your HRV Data Is Actually Telling You (And What It Isn't)
HRV is the most data-rich biometric available to high performers. But most people misread it. Here's a rigorous guide to what your numbers actually mean.
Eathan Janney, PhD
HRV: The One Metric Every High Performer Should Track (And Most Don't)
Heart rate variability is the most actionable biomarker available to high performers today. Here's what it measures, why it matters, and how to use it to optimize recovery, stress, and cognitive performance.
Eathan Janney, PhD
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