What’s the difference between breathing in through your nose and mouth? And why it’s recommended to do it through the nose?

Question

What’s the difference between breathing in through your nose and mouth? And why it’s recommended to do it through the nose?

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Answer 1

One reason to stop mouth breathing is that it can change your facial structure: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4295456/