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This video goes over the advantages of nasal breathing as compared to mouth breathing. Ranging from performance enhancement to immune support, breathing through the nose offers a wide range of benefits.


Sources:
https://oxygenadvantage.com/science/n...
  / researchconfirmsthesecretingredientto...  
https://www.ncbi.nlm.nih.gov/pmc/arti... https://www.sciencedirect.com/science... https://www.sciencedirect.com/science... https://link.springer.com/chapter/10.... https://www.ncbi.nlm.nih.gov/pmc/arti... https://bmcoralhealth.biomedcentral.c... https://www.sciencedirect.com/science...