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strong” width=”0/640″ Guan Fang
CCTV-1 “Life Circle” New Media Editor-in-Chief
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The hot and humid dog days
The “steam sauna” mode has been opened all over the country
Walking two steps out and sweating is like a “waterfall”
Many circle friends like to cool down by blowing air conditioners
But because of this, “air conditioner disease” also follows Come here
There are many circle friends in life because of long-term air conditioning
respiratory system Infection
Critical condition in intensive care unit
Unexpectedly The wrong air conditioner is so dangerous
❗️Why does the air conditioner cause respiratory infection?
❗️What other diseases may be caused by improper use of air conditioners?
❗️How should we blow the air conditioner correctly?
Don’t worry, let’s go and find out together with Xiaohuan!
This article reviewer
Wan Jun >Beijing Anzhen Hospital Affiliated to Capital Medical University
Department of Respiratory and Critical Care Medicine
Why does air conditioning cause respiratory infections?
1. The cold air of the air conditioner is a stimulus to our respiratory system. Under the action of the cold air, it is easy to have some respiratory system infections, just like the elderly In winter or autumn, bronchitis and pneumonia are particularly prone to occur.Due to the adverse stimulation of cold air, it will affect the respiratory system.
2. The air conditioner itself may carry certain pathogens, especially the air conditioner that has been put on hold for a long time. There is a lot of dust in it, and there are even some pathogenic microorganisms in it, if it is not used suddenly for a long time, a large number of microorganisms may diffuse into the whole air through the wind of the air conditioner, and then enter the body, causing respiratory infection.
The wrong air conditioner can lead to illness
Coughing, sneezing, runny nose, etc. in mild cases; pneumonia in severe cases, fever, chills, muscle aches, dry cough, no or less sputum symptoms. Allergies Patients with rhinitis are prone to repeated sneezing and runny nose due to hot and cold stimulation, and patients with chronic bronchitis and asthma are prone to acute attacks. The lack of air circulation leads to the proliferation and growth of viruses and bacteria, which can easily induce pharyngitis.
2. Digestive tract disease
Air conditioning-induced gastrointestinal disease It is not an organic infection, but a functional disease. The smooth muscles and peripheral blood vessels in the abdomen work together to cause gastrointestinal spasms during high-frequency switching of heat and cold, and some people experience stomach pain or abdominal pain and diarrhea as a result.
3. Cardiovascular disease
Human blood vessels in cold environment Constriction can lead to increased blood pressure, sudden heart attack, angina pectoris, pain due to local vasoconstriction, and even myocardial infarction and cerebral infarction in some elderly people.
4. Gynecological diseases
The cold environment can cause discomfort during menstruation, such as dysmenorrhea, Black blood, blood clots, fear of cold, etc.
5. Diseases of the motor system
After staying in the air-conditioned room for a long time, the vasoconstriction of the human body leads to the supply of blood vessels. In the state of ischemia and hypoxia, muscle and joint tissue will experience soreness and pain symptoms, such as cervical and lumbar pain, muscle stiffness, shoulder and knee joint pain, especially when cold wind blows.
6. Elevated blood sugar
Blowing the air conditioner for a long time is easy to cause Elevated blood sugar in diabetics. Cold stimulation will make the sympathetic nerves in the body in a state of excitement, while the insulin secretion of diabetic patients is insufficient, on the one hand, the blood sugar rises, and on the other hand, the lack of heat production weakens the cold tolerance.
7. Dry eye
If you stay in an air-conditioned room for a long time, cold air can cause tears Evaporation is too fast and tears are reduced.
How to blow air conditioner to be healthy?
2. Avoid sudden cooling and sudden heating
Our organism’s resilience It is limited, such as suddenly entering an air-conditioned room from a very hot environment, or suddenly entering a very hot environment from an air-conditioned room. In this case, it is difficult for the body to adjust, and it is prone to immune dysfunction and low immune function. question.
3. Pay attention to moisturizing
Appropriate humidity for respiratory mucosa, skin It is very helpful to wait for the preservation of immune function, so keep a certain humidity indoors and avoid cold and dry. You can drink water appropriately to supplement the water, or you can place a basin of water under the air outlet of the air conditioner to improve the humidity. The humidity in the room should be controlled at 40%~60%.
4. The temperature should not be set too low
< p> The temperature of the air conditioner should not be set too low, and the temperature difference between indoor and outdoor should not be too large. Excessive temperature will increase the burden on the body temperature regulation center, and it is easy to cause discomfort such as dizziness, dry skin, dry mouth, etc., and it also consumes electricity. Generally, the most suitable temperature It is 26℃~28℃.
5. Regularly opening windows for ventilation
Opening the air conditioner will make the air not circulated, the air quality will be degraded, and it is easy to Causes nasal congestion, dry throat, sneezing and other respiratory discomfort. Therefore, you should pay attention to frequent ventilation. It is recommended to open the window every 2 hours to 3 hours, and to ventilate for about 10 minutes to 15 minutes each time to ensure fresh indoor air.
6. Avoid direct blowing on the body
Avoid cold wind blowing directly on the body, especially the head, face, knees, Lower abdomen, waist and other parts that are more sensitive to temperature. If you blow directly on the head and neck, the temperature of the scalp will drop, which will easily cause cerebral vasoconstriction. For the elderly with cardiovascular and cerebrovascular diseases, it can cause stroke in severe cases.
7. The wind direction is upward for more cooling
When the air conditioner is turned on for cooling, it is better to turn the air conditioner upward , let the cold air circulate from top to bottom. When heating, let the air-conditioning wind direction downward. Generally speaking, the cold air goes down, and the hot air does the opposite, so this can make full use of the physical properties of the cold and hot air itself, naturally Communication.
8. Dehumidify in hot weather
The “dehumidification” function reduces the indoor humidity, so that people feel comfortable and cool without adjusting the temperature of the air conditioner.
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