Now spinning: Talk Talk's 'Spirit of Eden' while calibrating crew coherence.
// Target BPM: 6.0 // Phase Lock: Pending

Biometric
Breathing Sync

Input crew vitals. Output the exact tempo that locks hearts to lungs. No metaphors. Only the math of survival.

Crew Ingest

Heart Rate Variability (ms)

Respiration Rate (breaths/min)

Cabin CO₂ (ppm)

Coherence Viz

TARGET GROUP BPM —

PHASE OFFSET (°) —

STABILITY SCORE —

CO₂ STATUS —

GROUNDING FORMULAS

// Target Group BPM = argmin_f Σᵢ |HRVᵢ(f) − HRV_opt|²
// subject to f ∈ [5.5, 6.5] (coherence window)

// Phase Offset = atan2(Im[DFT(resp)]) − atan2(Im[DFT(hrv)])

// Stability Score = exp(−|phase| / 15°)² × (5000 ppm / CO₂_actual)

Constants sourced from NASA Life Support Baseline Values, HeartMath Institute protocols, and personal lab notes (Chillicothe, 2026). Full spec: /breathing-sync.json