Why nasal respiration considers better than mouth respiration
Answers
Nasal respiration is considered better than mouth respiration because nasal respiration filters the air, humidifies the air, removes microorganisms due to ciliary action.
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Dr Chinmay
Because the nostrils are smaller than the mouth, air exhaled through the nose creates a back flow of air (and oxygen) into the lungs. And because we exhale more slowly through the nose than we do though the mouth, the lungs have more time to extract oxygen from the air we've already taken in.
Moreover, mouth breathing doesn't warm and moisturize air as efficiently as nose breathing, so the air is more likely to irritate your lungs. Some people constantly breathe through the mouth because of chronic nasal congestion or an anatomical abnormality in the nose, such as a deviated septum.
In terms of dental health, breathing through the mouth can dry the oral cavity and lead to bad breath, gum disease and tooth decay.
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