Modern Wisdom #1049 - Dr Jay Wiles - A Masterclass in Improving Your HRV
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Jan 22, 2026 
Dr. Jay Wiles, a health educator and HRV researcher, dives into the fascinating world of Heart Rate Variability (HRV). He reveals how HRV is a noninvasive measure of nervous system adaptability and discusses what it really tells us about our health. Jay explains why everyone's HRV isn't comparable and emphasizes the importance of stability over high scores. Discover the nuances of resonance breathing, its quick effects on the vagus nerve, and how sleep plays a vital role in optimizing HRV. Get ready to learn actionable strategies for better health!
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10 Minutes, 4–6x Weekly For Trait Change
- For resonance training, aim for 10 minutes per session; consistent practice 4–6 times weekly yields trait changes in 4–12 weeks.
- Expect acute in-session HRV boosts, but baseline shifts typically require ~8–10 weeks of regular training.
Low vs High Frequency HRV Explained
- FFT frequency analysis splits HRV into low and high-frequency bands that reflect different physiological processes.
- Slow resonance breathing increases low-frequency oscillations and can elevate resting high-frequency power over time.
Self-Test Resonance Works — If You Actually Do It
- You can self-practice a resonance protocol, but consistency and accountability determine success.
- Use guided tools or devices to maintain precision and habit rather than relying on occasional DIY timing.
