i can understand in ‘through the nose’, since dust and other bits can be blocked by the nose hairs and mucus, and apparently the air is more likely to warm up when passing through the nose first, reducing irritation of the throat.
but what difference, if any, does exhaling through the mouth make?
In: 676
Oxygenation and muscle engagement.
Breathing in through your nose in addition to all the benefits you listed, also increases the amount of oxygen you get by like 20%. When you exhale through your mouth it encourages engaging your diaphragm more than through your nose.
These things together, activating muscle groups and oxygenating your blood, prepare your body for physical activity. For some reason our brains also tend to increase focus and reduce drowsiness for it as well.
Short deep breaths, long focused breaths, pulsed breathing, they’re all looking for a response to breathing patterns present in other activities
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