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𝓜 Number
𝓜 — The Harmony Number
This is the Greatest Common Divisor of your heart and breath rhythms. Think of musical harmony — when instruments share a common beat, they resonate together. Higher is better. 𝓜=1 means your rhythms share no common pulse (stress). 𝓜=4 or higher means deep harmony — your body has found its mathematical lock.
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PRQ
PRQ — Pulse Respiration Quotient
How many heartbeats happen per one complete breath cycle. Healthy people at rest naturally settle near 4:1 — four heartbeats per breath. A clean whole number (4, 5, 6…) means your heart and lungs are synchronized. A decimal like 4.7 means they're slightly out of sync.
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Coherence
Coherence — How Locked You Are
How close your PRQ is to a clean whole number. 100% = perfect lock, like two gears meshing exactly. Science calls this Heart Rate Variability coherence. It's associated with reduced cortisol, better focus, and calm. Below 60% and you may feel subtle restlessness even while trying to relax.
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Frustration
Frustration — The Restlessness Metric
When your rhythms fall between clean ratios — like 4.5 beats per breath instead of 4 or 5 — the system is "undecided." This is the mathematical signature of that subtle edginess you feel even after breathing deeply. Goal: below 5%. The Anxious Breath preset deliberately shows this feeling.