As the weather gets colder, this small issue of runny nose is beginning to plague many people. 50% - 90% of people began to sneeze when the weather turned cold. Something to eat and steps to speed up may cause the nose to suck, and the nose will flow without hesitation. Wherever I went, I took a pile of toilet paper and thought about it. People with rhinitis, asthma, eczema, or hay fever may have more experience with this experience. So why didn't you hear the cold nose? This may not really blame the nose. When it is cold and cold, it is actually the nose that protects your body instinctively.
Inhalation of air is too dry to speed up the secretion of liquid
The interpretation given by The Conversation in Australia is that in a cold and freezing environment, the outside temperature falls below the freezing point, and the air inhaled through the nose must pass a moist heat treatment before it reaches the lungs. Because sensitive and fragile lungs can barely withstand the impact of cold air. During this process, the nose played a huge role.
When the cold, dry air passes through the nose, it first stimulates the nerves in the nasal cavity and sends this signal to the brain. The brain then began deploying blood vessels to expand blood flow in the nose to warm the cold air. At the same time, the nose will be commanded to secrete more liquid to moisten the incoming air. According to calculations, a person may reach 300-400 ml of liquid in one day.
Under normal circumstances, these noses are in the direction of nasal mucociliary movement, flow to the back of the nasal cavity to the pharynx, a small part of the evaporated, a small part of the dry knot became a nose, generally do not see it out of the nasal cavity .
Regardless of the process of heating or humidifying the air, the temperature of the inner cavity of the nose will be lowered because of the evaporation of water, so the nose will feedback to the brain and apply for temperature increase. The brain will instruct to increase the blood supply and the amount of fluid in the nasal cavity again. This process is cyclical and it is always difficult to reach equilibrium. If the nose is overreacting, excessive amounts of liquid are produced, like a stream of clear water flowing down from the nostrils and pooling into a powerful nose.
The most important thing for patients with rhinitis to keep warm
As patients with rhinitis, asthma, eczema, or hay fever, their nasal cells are more sensitive, so in the process there will be a more extreme reaction, so the nose is out of control.
In general, people who do not have rhinitis generally have a clear nose during the winter and have a slight swelling on their nose. As long as people reach normal temperatures, the situation will improve. If you have rhinitis, as long as you encounter cold air, the nose will be "continuous", in this case, you can carry paper towels or handkerchiefs to handle the "incident site", severe anti-allergic or anti-inflammatory spray can be selected. If you have a longer duration, go to the hospital in time.
In addition, the cold air can also cause irritation to the eyes, causing tearing reaction, but if it is not enough to form tears, the fluid from the lacrimal gland will flow from the nasolacrimal duct to the nose and increase the amount of nasal discharge. This is called "The nose is tearful".
Therefore, in order to prevent embarrassing situation, wear masks to go out in winter as much as possible to reduce the cold air into the nasal cavity, should pay attention to keep warm, runny nose can be used to wash the nose with salt water.
Yellowtail,Japanese amberjack,Amberjack,Yellowtail Fish
Zhoushan Boda Aquatic Products Co.,Ltd , https://www.baida-aquatic.com