Nasal breathing heats incoming air, which can reduce the probability of cold and flu viruses successfully embedding in the nasal mucosal lining.

“Consciously focusing on nasal breathing is one of the best things that we can all do to combat any colds or flu that we might encounter”

“so if it sounds overly simple just breathe through your nose it is very simple but it's also very effective”

“When we breathe through our nose we heat the air in a way that's very different from the way we heat the air when we mouth breathe and by heating the air that's coming into the nasal passages it shifts the probability that colder flu viruses will successfully embed in the mucosal lining and infect the underlying cells and get into the other cells and tissues of our body”