practice · Tracked item
Brian Mackenzie CO2 tolerance test
Every recorded take from the experts Cited tracks — each with the exact quote, source, and timestamp.
▲ Strong endorse
1 recommendation across 1 expert · 1 episode
1 endorse
0 nuanced
0 avoid
Who's on the record
-
Alternative
Take three normal breaths, then biggest possible inhale, then exhale through pursed lips as slowly as possible while timing; ~60-90 seconds is target.
“take three normal breaths... biggest breath you've ever taken
TR▶ 2:13:00Dosage3 normal nose breaths, max inhale, exhale through pursed lips slowly while timing; target 60-90+ secCaveatsDon't do near water or while drivingCertaintyexplicitrecommendation