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Mouth Breathing for High-Output Efforts
Use mouth breathing when your ventilation demand spikes, especially during hard exercise or sprinting, rather than as your default breathing pattern. The larger airway lets you move more air more easily, which can help meet high oxygen demand and support performance when nasal breathing becomes limiting.
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“However, when your ventilation needs to increase, like during exercise, you need to move more air. You do that through your mouth because the airways are much larger then and therefore you can move much more air”
huberman · Essentials: Breathing for Mental & Physical Health & Performance | Dr. Jack Feldman · Nov 13, 2025 · 4:02 · open ↗
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