Back to the glossary
Methods & Traditions
BOLT (Body Oxygen Level Test)
Also known as: BOLT test, BOLT score
A simple self-test from functional breathing: after a normal exhale, you time how long you can comfortably hold your breath until the first clear urge to breathe. Practitioners use it to track CO₂ tolerance; research suggests breath-hold time is only a rough marker, not a medical measurement.