• When breathing through the mouth, the air does not reach the lungs?
The route along which the air passes during oral and nasal breathing differs, as it may seem to many, slightly. Starting at the bottom of the pharynx, it is identical. However, nasal breathing has many characteristics. Let us briefly recall them.
The nose is the first line of defense against airborne health hazards. During nasal breathing, the air is warmed up, humidified, partially cleared of dust and microbes. The perception of smell in this case is much better than with mouth breathing. It plays an important role in the detection of harmful substances in the air and food. Also, in the case of mouth breathing, a person loses much more moisture.
Less obvious and well-known benefit: Nitric oxide is produced in the nasal passages. During nasal breathing, it reaches the lungs and promotes better absorption of oxygen by the body.
Nasal breathing slows down the flow of air: it encounters more resistance than breathing through the mouth. This helps the lungs and diaphragm to function properly when inhaling. In addition, it ensures the natural position of the tongue and lips, which is necessary for the normal development of dental arches and bite.