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Protection against pathogens – Nose breathing and mouth breathing compared
Nasal breathing naturally fulfills important tasks in the defense against pathogens. Although the protective mechanisms of the nose do not provide absolute security against viruses and other harmful invaders, the majority of attackers are already stopped in the nose. People who breathe mainly through the mouth instead of the nose lack this defense mechanism. They therefore not only have a higher susceptibility to many diseases, but are also more intensively and frequently affected by them.