Health for a lifetime >>>> Why is there a runny nose in the cold?
Why is there a runny nose in the cold?
During the onset of cold weather (at zero and subzero temperatures), almost everyone is faced with one interesting problem - the problem of the common cold. Even if you are completely healthy, your nose starts to get wet. Why does a runny nose start in the cold?
The correct breathing system is predominantly nasal breathing: inhaling and exhaling through the nose or inhaling through the nose - exhaling through the mouth. So the brain is better enriched with oxygen. When cold air enters the nasal cavity, it cools the mucous membrane, the receptors of which immediately send a signal: "We need to warm up!" And the circulatory system begins to vigorously drive blood into the capillaries of the nasal mucosa to heat it.
Air that has entered the nasal cavity meets a stream of warm air and heated mucous membrane on its way, and the temperature difference contributes to the formation of condensation (as on glass windows when the heating is turned off and the temperature is lowered outside). Condensate has nowhere to go except to flow out of the nasal cavity, and a person has to blot this liquid with a handkerchief or napkin.
The nose dries up once the ambient temperature and body temperature are in balance.
The same problem of condensation occurs with mouth breathing: inhaling and exhaling through the mouth. But condensation in this case most often enters the oral cavity and mixes with saliva, and only a small part of it can settle on the lips and above the upper lip.
For this reason, you always need to carry napkins or handkerchiefs with you outside, so that you have something to stop dripping from your nose and look decent.
Read
Read
