Air conditioning disease, air conditioning brings people comfort, but also brings a
Air conditioning disease, air conditioning brings people comfort, but also brings a "disease." People who work and study in air-conditioned environment for a long time will have symptoms such as stuffy nose, dizziness, sneezing, tinnitus, fatigue, memory loss, and some skin allergies, such as tight and dry skin, allergies, and skin deterioration. This phenomenon is called "air conditioning syndrome" or "air conditioning disease" in modern medicine.
The cause of disease
air-dry
Air conditioning disease is actually a disease caused by dry air. In summer, when the air conditioner cools, it not only brings cool air to people, but also produces a lot of condensed water, which makes the indoor air more and more dry. In this dry air for a long time, firstly, our eyes are dry and our lips are dry, which is not difficult to understand; Secondly, our skin is mostly exposed to this dry air because of lack of clothes, and even if we don't sweat, we will lose a lot of water; Then when we breathe, we inhale dry air and exhale almost saturated water, so we will lose more water. After a long time, our nasal mucosa and tracheal mucosa will dry out, and when it is serious, it will crack, and viruses such as colds will take advantage of it and reach the blood, which will inevitably cause colds and coughs.
Therefore, in air-conditioned rooms, symptoms such as stuffy nose, dry eyes, dry lips, dizziness, sneezing, tinnitus, fatigue, memory loss, tight and dry skin, allergies, wrinkles, joint pain and muscle pain are normal due to dry air. This is all caused by dehydration of human tissues, which affects the normal operation of nutrients and wastes in tissues and causes the functional decline of various tissues.
In addition, dry air will shrink, harden, crack or even damage textiles, carpets, paper, leather, plastics and wood that constitutes furniture. Air drying will also cause a lot of dust, and various viruses, bacterial spores, various microbial eggs, etc. will spread in these dust and diffuse indoors, which is easy to cause infection.
In fact, proper humidity is as important to the owner of the room as temperature. In general, the optimum relative humidity for human body to feel comfortable is 40% ~ 70%. Too low or too high relative humidity is uncomfortable and even harmful to human body. When people are outdoors, they sweat and dissipate heat due to the large amount of activities, which consumes a lot of energy. At this time, the air humidity is 40% ~ 50%, which makes them feel most comfortable. In the office, due to the small amount of human activity, the air humidity is the most comfortable when it is 50% ~ 60%; When sleeping in the bedroom, because the function of human tissues is in a semi-stagnant state, the human body is in a relaxed state and consumes the lowest energy. At this time, the air humidity is 60% ~ 70%, and it feels most comfortable.
symptom
cardinal symptom
The main symptoms of air conditioning disease are different because of different adaptability. The general symptoms are chills and discomfort, fatigue and weakness, pain in muscles and joints of limbs, headache and low back pain, and severe cases can also cause facial paralysis. The reason is that the vascular nerve function of the local tissue in the ear is disordered, which makes the arteriole located in stylomastoid foramen spasm, causing primary facial nerve ischemia, and then venous congestion and edema, which oppresses the facial nerve and makes the affected side skew.
disadvantaged groups
Generally speaking, people who are prone to air conditioning diseases are mainly the elderly, children and women. Old people and children have low body resistance, while women have thin clothes and bare arms.
Susceptible site
Respiratory tract is the most "fragile"
The respiratory tract is the most vulnerable. Once air conditioning breaks through the fragile "defense line" of respiratory tract, cold symptoms such as cough, sneezing and runny nose are mild, that is, upper respiratory tract diseases, and air conditioning causes more serious lower respiratory tract diseases, especially pneumonia. Especially when working and studying under central air conditioning, central air conditioning is very suitable for the spread of Legionella, and the incubation period is about 2- 12 days. Although the upper respiratory tract is unresponsive, it causes fever, chills, muscle aches, dry cough, no phlegm or less phlegm. If not treated in time, you will continue to have a fever, dry cough, chills, and even die of respiratory failure.
In addition, although the room is cold, the humidity is too low, which is not good for people's eyes and nasal mucosa. A dry environment is suitable for the survival of bacteria and viruses. People should be especially careful when their noses and throats are dry. At the same time, the dust and dust mites at home cannot circulate, and people with allergies are prone to allergic reactions.
The cranial nerves will be unbalanced.
I often hear people who often sit in air-conditioned rooms say, "I feel dizzy and see stars, and forget things." According to reports, this is a common brain imbalance reaction caused by air conditioning disease. Air conditioning not only causes colds, but also does great harm to the brain. The negative ions contained in the air can inhibit the central nervous system and relieve brain fatigue. But the air conditioner absorbs too many anions, which makes more and more cations in the room. The imbalance of anion and cation also makes the human brain nervous system unbalanced.
If indoor air conditioning only makes you dizzy and sick, then indoor air conditioning adds a little danger to the driver's brain and nerves. Many drivers who are used to turning on air conditioners sometimes feel tired, headache and numbness in their hands and feet. It is easy to get sleepy in summer, lose control of the brain and feel uncomfortable all over, which is easy to cause traffic accidents.
Joints and stomach are easy to catch cold.
Young people often don't pay much attention to joint pain caused by air conditioning, but long-term air conditioning will cause such problems. In summer, the outdoor air is hot, and people generally wear less. But the indoor air conditioner blows badly and the clothes are so thin. Such a low-temperature environment will stimulate the rapid contraction of blood vessels and poor blood circulation, leading to joint injury and cold pain, such as stiff neck and back, sore waist and limbs, cold and numbness in hands and feet.
In addition, too "cold" in the room can easily lead to weakened gastrointestinal movement. In addition, people often eat cold drinks in summer, and both inside and outside the intestine are controlled by "cold". It's not surprising that many people pull and vomit.
In fact, this kind of autonomic nervous disorder caused by sympathetic nerve excitation is most likely to occur in young women, mainly manifested as menstrual disorder. Nowadays, many white-collar women work in the company office, under low temperature air conditioning all day and wearing short skirts at the same time. Originally, their physique was relatively weak, and their hands and feet dissipated heat quickly, leading to vasomotor disorders. Such cold stimulation is likely to affect ovarian function, causing ovulation disorder, menstrual disorder or severe abdominal pain.
prevent
To prevent air-conditioning diseases, we must first know the causes of air-conditioning diseases. The reason of air conditioning disease is that the air in the air-conditioned room is dehumidified for a long time and then dried. The only way to prevent air-conditioning diseases is to humidify the air in the air-conditioned room to a suitable humidity, such as keeping the humidity around 60% in the office and workshop, 65% at home and 70% in the bedroom, so as not to get sick because of turning on the air conditioner.
Now there is a patented technology, which is called "Method and device for air conditioning to increase efficiency, save energy and reduce humidity", and the patent number is: 20110184936.0. It is expected that in the near future, we can all use air conditioners that can adjust the temperature and humidity.
This patented technology is probably: in a dry air-conditioned room, water or air-conditioning condensate flows to the cloth curtain hanging on the wall, so that the cloth curtain wets a certain area, so that it naturally evaporates on the water curtain, absorbs the heat of indoor air into steam, and adjusts the humidity of air in the air-conditioned room by controlling the flow rate of water flowing to the water curtain or the wetting area of the water curtain. In this way, while the indoor air is cooled by the refrigerant inside the air conditioner, part of the water vapor in the air is condensed into water, and then the condensed water flows to the water curtain and naturally evaporates into water vapor, thereby humidifying the indoor air and absorbing the heat of the indoor air. This is equivalent to recovering the cold energy lost by condensed water and using it to achieve the purpose of increasing efficiency and saving energy. In this way, the indoor air temperature and humidity are controlled, and the refrigeration efficiency of the air conditioner is improved.
preventive
◆ 1. When using air conditioner, be sure to pay attention to ventilation. Open the window regularly every day, turn off the air conditioner, and add air for ventilation to keep a certain amount of fresh air indoors. It is best to clean the air conditioner once every two weeks.
◆2. When going out in an air-conditioned environment, you should first move in the shade for a while, and then move in the sun after your body adapts; If you are in an air-conditioned room for a long time, you should go outdoors more and drink more boiled water to speed up your metabolism.
◆3. The room temperature and outdoor natural temperature of the air conditioner should not be too high, and should not exceed 5 degrees. It is best not to use air conditioning at night. It is safer to turn off the air conditioner when you are asleep. Being outdoors before going to bed is conducive to promoting blood circulation and preventing air-conditioning diseases.
◆4. When working and studying in an air-conditioned environment, don't let the cold air from the air outlet blow directly on your body. It is best not to blow air conditioning directly when sweating, so the temperature drops too fast and it is easy to get sick.
◆5. Smoking is prohibited indoors.
◆6. Always keep your skin clean and hygienic. This is due to frequent contact with air-conditioned environment, sudden changes in heat and cold, and bacteria attached to the skin are easily blocked in sweat glands or sebaceous glands, causing infection and suppuration. Therefore, always take a bath and keep your skin clean.
◆7. Use disinfectants to kill and prevent the growth of microorganisms.
◆8. Add a dehumidifier to prevent bacterial growth.
◆9. Don't turn on the air conditioner in the stationary car, so as to prevent the carbon monoxide discharged from the automobile engine from flowing back into the car and causing an accident, that is, carbon monoxide poisoning.
◆ 10. Pay attention to the clothes in the workplace to meet the requirements of keeping warm in an air-conditioned environment.
◆ 1 1 Generally speaking, the better room temperature is 27℃-28℃. Men can lower 1℃-2℃ appropriately. Of course, this value is not absolute, because when the outdoor temperature is very high, the temperature difference between indoor and outdoor will exceed the adjustment range of human body. [ 1]
The prevention of air-conditioning diseases is mainly the above ten items. If you have symptoms such as cold, fever, pneumonia, mouth and eyes askew, you should consult a doctor in time.
Preventive diet
In addition to often opening windows for ventilation, Koreans also have a good way to fight air-conditioning diseases with celery porridge. Wash celery, cut into pieces, put cold rice into a pot, add water, add celery after the rice becomes sticky, add sesame oil and appropriate amount of salt after a little cooking.
Air-conditioned rooms are cooler, and celery is a cool food. Why can it fight air conditioning disease?
Celery, celery and celery have the same composition and function, and are rich in provitamin A, vitamin B 1, B2, vitamin C and vitamin P, as well as trace elements, protein, mannitol and dietary fiber. In a closed air-conditioned room, the internal heat of the human body cannot be discharged, which is easy to cause diseases. Celery has the functions of clearing away heat, promoting gastrointestinal peristalsis and helping to dispel summer heat.
When buying celery, you should choose short and thick stems and few green leaves; The freshness of celery mainly depends on whether the leaves are straight. The leaves of fresh celery are straight. Celery stored for a long time, the tip of the leaf will tilt, the leaves will become soft, and even yellow and rust.
Why can drinking porridge fight air-conditioning disease?
In a closed air-conditioned room, people's body temperature regulation, water and salt metabolism, circulation, digestion, nerves, endocrine and urinary system will all change, and the loss of appetite in summer will also limit the absorption of nutrients. So, fight air conditioning.
Cold rice porridge
Eating porridge when you are sick is a good way to supplement nutrition. Drinking porridge can enhance appetite and replenish physical strength; Drinking porridge can replenish water for the body and effectively prevent constipation; It can also prevent colds, prevent dry throat and regulate the stomach.
Why do you cook porridge with cold rice?
Casserole porridge is the best, but it's a "slow work" thing, but office workers can't spare the time. Cooking porridge with cold rice saves time and is nutritious.
What are the benefits of adding sesame oil to porridge?
As a reminder, remember to add sesame oil after cooking porridge. The fragrance of sesame oil is not only appetizing, but also beneficial to the digestion and absorption of food.
Sesame oil is rich in nutrition and vitamin E, which can promote cell division and delay aging. Sesame oil can protect blood vessels. Sesame oil contains about 40% unsaturated fatty acids such as linoleic acid and palmitic acid, which is easily decomposed, absorbed and utilized by human body, promotes cholesterol metabolism and helps to eliminate deposits on arterial wall. Sedentary people are prone to habitual constipation. Drinking a mouthful of sesame oil on an empty stomach in the morning and evening can relax the bowels. Drinking sesame oil before drinking can protect the mouth, esophagus, cardia and gastric mucosa. Drinking sesame oil often can enhance the elasticity of vocal cords, make the glottis open and close flexibly and effectively, and have a good recovery effect on hoarseness and chronic pharyngitis.
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The data is quoted from Baidu Encyclopedia: /view/28 1065.htm#2.
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