Comment “COHERENCE” and I’ll send you the full guide Did you know your breath can literally synchronize your heart and brain? That’s what happens during Coherence Breathing. At a precise 5.5-second inhale/exhale rhythm (10-11 second cycle), your cardiovascular system enters resonance frequency, maximizing heart rate variability—a key biomarker of health. Research from the HeartMath Institute shows this specific pattern creates “psychophysiological coherence,” where your autonomic nervous system