Focus
CO₂ Tolerance Training
CO₂ tolerance training builds comfort with carbon dioxide via controlled breath holds on land. Slow progression is essential; never practice holds alone in water.
CO₂ tolerance training uses breath holds or reduced-breathing drills after exhale to raise comfort with carbon dioxide buildup—relevant for free divers and some endurance athletes. Progress slowly; never practice in water alone or while driving.
Overtraining can cause dizziness.
Common questions
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Who should avoid CO₂ tolerance drills?
People with uncontrolled hypertension, panic disorder without guidance, pregnancy, or cardiovascular disease should consult clinicians first. Stop if numbness, chest pain, or fainting occurs.
Related terms
Put CO₂ Tolerance Training into practice
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