Why it matters
The exhale is the brake pedal; nasal breathing releases nitric oxide and calms the amygdala. Consistent slow breathing raises HRV and vagal tone permanently.
Start today
Six-in / six-out resonance breathing, 5–10 minutes daily; box breathing before hard conversations; a humming exhale to tone the vagus.
How we measure it
HRV coherence at ~6 breaths/minbreath-hold
Measured in the Medicine 3.0 baseline and re-tested once the protocol has run.
The body it belongs to
The emotional body — feelings in motion. Blue Mind and parasympathetic calm.
The other Water points
06 · Blue Mind
07 · Cold & HRV mastery
09 · Gratitude
10 · Nature & blue spaces
One point is a practice. Twenty-one is a protocol.
Open the tracker, score yourself honestly, and bring the number to the initial consultation.