The alternation of one nostril being more blocked than the other throughout the day is a natural physiological phenomenon called the nasal cycle; however, permanent obstruction or mouth breathing requires consultation with a specialist.

noli's read

The creator's statement is particularly accurate and is supported by a well-documented biological reality. This phenomenon, called the "nasal cycle," was documented as early as 1895 by researcher Richard Kayser. A literature review published in the journal Rhinology Online by researcher Pendolino and his team shows that 70% to 80% of adults exhibit this rhythm of alternating nasal congestion and decongestion. This mechanism is orchestrated by the autonomic nervous system to ensure optimal humidification and filtration of the air we breathe daily. Finally, the advice to consult a professional in cases of a constantly blocked nose or habitual mouth breathing is scientifically very sound, as permanent asymmetry often indicates a persistent physical obstacle rather than this temporary cycle. This is an excellent example of the popularization of a natural process often mistakenly confused with a medical condition.

the sources

1. 1Senaratna CV, Perret JL, Lodge CJ, et al. 2016
2. 2Wang X, Ouyang Y, Wang Z, et al. 2013
3. 3Kaditis AG, Alonso Alvarez ML, Boudewyns A, et al. 2016