The Inhalia Journal
Science-backed, practical guides to resonance breathing, HRV and a calmer nervous system. Written for people who want to measure what works — not just feel it.
Resonance breathing, explained
THE FUNDAMENTALSBasics
Resonance Breathing: The Complete Guide
What resonance breathing is, how it works, and why ~6 breaths per minute boosts HRV.
Guide
How to Find Your Resonance Frequency
A step-by-step protocol for testing breathing paces — and why a sensor makes it accurate.
Science
The Benefits of Coherent Breathing
What coherent breathing does for stress, HRV and the nervous system — and what research shows.
Compare
Resonance Breathing vs Box Breathing
How they differ, what each is good for, and when to use which.
Science
6 Breaths Per Minute: The 0.1 Hz Sweet Spot
Why ~6 breaths per minute hits your body's resonance frequency and maximizes HRV.
Evidence
Does Resonance Breathing Actually Work?
An honest look at what the research says — including the 2023 meta-analysis on stress and HRV.
Why it matters
Your Resonance Frequency Keeps Changing
It's personal and it shifts over time — which is why a one-time test isn't enough.
HRV training & heart rate sensors
MEASURE ITTraining
HRV Breathing Training: A Complete Guide
How slow, paced breathing trains heart-rate variability — the protocol and the science.
Gear
The Best Heart Rate Sensors for HRV Breathing
Why accurate RR-interval data matters, and how Polar H10, Oura and Whoop compare.
Gear
Improve Your HRV with the Oura Ring
How to pair Oura's overnight HRV with a daily breathing practice.
Gear
Apple Watch HRV & Breathing
What the Apple Watch measures, its limits, and how to use it for breathing.