"Coherence" describes the state when respiratory, cardiac, and vascular oscillations synchronise. Practically, it happens when you breathe at your resonance frequency, which is approximately 5.5 BPM for most adults.
Paced breathing near the cardiovascular resonance frequency (about 5.5–6 BPM), which maximises HRV amplitude.
"Coherence" describes the state when respiratory, cardiac, and vascular oscillations synchronise. Practically, it happens when you breathe at your resonance frequency, which is approximately 5.5 BPM for most adults.
See also