Physiological breathing is nasal breathing. According to several studies, oral breathing affects nearly 55% of the population. Only in 20% of cases is it due to a deformation of the nasal septum, for example because of an accident. In the remaining 80% of cases, it could be the consequences of a tongue dysfunction. This type of breathing can cause many disorders, such as craniofacial morphology troubles, infections, postural disorders, or affect the neurological or cardiovascular system. However, it especially alters our concentration, our vigilance, our cognitive sense in daily life.