Why it matters
How well your body tolerates rising carbon dioxide before panic or breathlessness — your brain's relationship with CO₂. Low tolerance means over-breathing and a chronically alert brain.
Start today
Nasal-only breathing by default; reduced-breathing walks; breath-hold ladders on land, seated.
How we measure it
BOLT scorebreath-hold time (never in water alone)
Measured in the Medicine 3.0 baseline and re-tested once the protocol has run.
The other Air points
11 · NSDR & alpha-state practice
12 · Neuroplasticity
13 · Read
15 · Digital reset
One point is a practice. Twenty-one is a protocol.
Open the tracker, score yourself honestly, and bring the number to the initial consultation.