For a normal person, the nostrils are not alternating breaths. It is possible that the two sides of the nasal resistance is different, but there will not be alternating breathing.
Under normal conditions, both nostrils do not breathe alternately, and air enters the nasal cavity at the same time, but the air content in the left and right nasal cavities may not be equal, and this phenomenon is usually unnoticeable.
When rhinitis occurs, it may cause symptoms such as alternating nasal congestion, so it can lead to the appearance of alternate breathing and other phenomena. This is a symptom that occurs when the regulation of the volume blood vessels of the turbinates in the nasal cavity is affected.
In normal life, we should pay attention to appropriate physical exercise, avoid colds and colds, help to improve the blood circulation in the nasal cavity, and reduce the ventilation and drainage dysfunction of the nasal cavity.
If the two sides of the nostrils alternately blocked symptoms, can consult the otorhinolaryngology, clear cause and follow the doctor’s instructions for treatment.