Summary
Dr Jay Wiles joins Modern Wisdom to discuss a masterclass in improving your hrv. Key topics include what hrv actually measures and what it does not; how the vagal system responds to changes in hrv and how it adapts; resonance breathing is different from slow breathing.
Key Points
- What HRV actually measures and what it does not
- How the vagal system responds to changes in HRV and how it adapts
- Resonance breathing is different from slow breathing
- What to improve first when optimizing HRV
- Heart rate variability as a key health and performance metric
- Sleep optimization techniques and their impact on HRV
Key Moments
What HRV actually measures and the autonomic nervous system
Dr. Wiles explains heart rate variability as a window into the autonomic nervous system, which is a threat detection signaling mechanism constantly scanning environments and making physiological adjustments.
"the way I like to explain heart rate variability is first by giving a broad definition of what HRV actually is"
The autonomic nervous system as threat detection
HRV reflects how well the autonomic nervous system scans for threats and maintains homeostasis. It constantly receives internal and external cues and adjusts physiology to maintain balance.
"It's a threat detection signaling mechanism that we have built in from an evolutionary perspective. A great way to think about it is that it's constantly scanning our environments, receiving internal cues, external cues, and making adjustments to our physiology"
Resonance breathing activates the vagus nerve within seconds
Even someone who has never practiced resonance breathing will see their vagus nerve begin firing almost instantaneously, creating oscillations in heart rate within seconds of starting.
"the vagus nerve will begin firing almost instantaneously. So within seconds they'll start to make these really beautiful oscillations in their heart rate"
What resonance frequency breathing is and how it works
Resonance breathing involves modulating breathing speed to create physiological resonance where two or more body systems oscillate at the same rate, creating synergy and maximizing HRV improvements.
"resonance frequency is kind of a long- winded way or a very kind of complex way of saying is that we can modulate our breathing like the speed of breathing which is frequency kind of how fast we breathe to create physiological resonance in the body"
