I was reading about the differences between mouth and nose breathing, and it seems that nitric oxide is beneficial to cardiovascular health, but that only breathing through one’s nose produces it. I couldn’t seem to find a simple explanation for it.
Edit to add: I thought this was a genuine question about something I didn’t understand but wanted to. So much(passive) aggression in the comments. Apologies. I was just trying to learn.
In: 2430
Mouth breathing can’t allow contact with the enzymes because that also exposes those enzymes to your saliva (which will break them down) and when you swallow it will wash them down into your stomach. Thus you can’t have them between your oropharynx and your glottis.
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