High summer temperatures, thin clothing, long stay in low-temperature environment, cold feeling spread to the body temperature regulation center, instructions skin vasoconstriction, sweat glands stop secretion, to reduce heat, maintain body temperature; cold feeling sympathetic nerve stimulation, resulting in intra-abdominal blood vessels Contraction, gastrointestinal movements weakened, resulting in a number of corresponding symptoms. Cold stimulation of the female body can affect ovarian function, causing ovulation disorders and menstrual disorders. In addition to the cold factors mentioned above, the doors and windows are closed, and there is a lack of fresh air; the air temperature inside and outside the air-conditioned room is too different; and although the air-conditioning filter can eliminate most of the dust, it cannot exclude microorganisms, and pathogenic bacteria can easily stay in air-conditioned rooms. , growth and reproduction ... ... These are the causes of illness.
Respiratory most "fragile"
Trick - pay attention to temperature transition
Myth: Many families are afraid of blowing cold air and blowing colds, so while sleeping at night while driving air conditioners, they are covered with thick quilts, thinking that this will prevent air-conditioning diseases. In fact, the respiratory tract is the most vulnerable, cover quilt can only keep warm and not prevent disease. Although air conditioners for home use are not suitable for the growth of Legionella, they do not suffer from pneumonia. However, when cold air enters the body from the respiratory tract, when it wakes up, it starts to go dry orally, and there are still cold symptoms. Therefore, cold air invades the respiratory tract, and sometimes it is hard to prevent it.
Once the air-conditioning breaks through the vulnerable “defense line†of the respiratory tract, symptoms of colds such as coughing, sneezing, and salivation appear, that is, upper respiratory tract diseases. In the case of Guang’anmen Hospital, the number of outpatients with nearly 800 people per day is air-conditioned. The number of colds it caused was 40 to 50. Director Ho said that this kind of cold is often referred to as a hot cold. On the one hand, because of frequent access to the air-conditioned room, the body can not adapt to the uneven temperature of hot and cold; second, because the air-conditioned rooms are closed, there are many people in the room and the air circulation is poor. If someone has a cold, it will quickly infect others.
Air-conditioning causes more severe lower respiratory disease and is pneumonia. Especially working and studying under central air-conditioning, central air-conditioning is very suitable for the spread of Legionella, the incubation period is about 2-12 days, although there is no reaction of the upper respiratory tract, but it is fever, cold, muscle aches, dry cough, no sputum or less sputum If you do not cure it, you will continue to have fever, dry cough, and chills. Most antibiotics will have no effect, and severe ones will die due to respiratory failure.
In addition, although the house is cool, the humidity is too low, which is unfavorable to people's eyes and nasal mucosa. The dry environment is suitable for the survival of pathogens and viruses. People feel that when the nose and throat are dry, they must be careful about the virus intrusion. At the same time, dust and dust mites in the house do not circulate, and people with allergies are prone to allergic reactions.
Expert Tips: frequent access to air-conditioned rooms, there must be a temperature transition, such as the first increase in temperature or turn off the air conditioner, when entering the door must first sweat dry. Stay in the air-conditioned room for a long time, try to drink plenty of water, and often moisturize with mop-filled mop. If you have symptoms of flu, you should go to the hospital promptly to avoid deterioration and cross-contamination.
Susceptible people: Those who often enter and exit the air-conditioned room; People with chronic illnesses or low immunity, such as the elderly and children, especially those receiving hormonal medications and smokers.
Brain nerve imbalance
Trick - Strengthen Air Circulation
Myth: We often see young people and people who are physically fat. They are air-conditioned at home all the time, or they sweat into the house from outside. The temperature is set very low, and some people even run into the air-conditioning and blow straight. Only The picture is very happy. It is not known that when the air flow rate increases when the air blows, the temperature will drop 3°C-4°C, and the head will dizzy. Moreover, the sudden cold air can easily stimulate the sudden contraction of sweat pores and cause headaches.
People who often sit in the air-conditioned room often say "I feel dizzy, see Venus, and forget about things" and the like. According to Director Ho, this is a common brain imbalance caused by air conditioning. Director Ho said that apart from causing people to catch colds, air conditioners are also very harmful to the brain. The anions contained in the air can inhibit the human central nervous system and relieve brain fatigue. However, the air-conditioning adsorbed anions too much, causing more and more cations in the house. The imbalance of cations and cations also made people's brain nervous system unbalanced.
If indoor air conditioning just makes you dizzy and disgusting, then the air conditioning in the car adds a bit of danger to the driver's brain nerve damage. Many drivers who are accustomed to cooling their air conditioners sometimes feel inexplicable fatigue, headaches, and varying degrees of numbness in their hands and feet. In the summer, they are easily trapped, and their brains do not listen and call themselves uncomfortable. It is easy to get out of traffic accidents.
Expert Tip: Try to avoid prolonged stay in the air-conditioned room, if conditions are best to keep the room temperature constant at about 24 °C, indoor and outdoor temperature difference exceeds 7 °C, but also often window ventilation, to ensure indoor and outdoor air convection, boot For 1-3 hours, it is best to turn off the air conditioner for a period of time, open the window to breathe fresh air, natural cold air is the best. If the conditions do not allow, it is best to go to the outdoor corridor every other hour to change the air in the place where there is a window, especially when the lunch break is going outdoors, and the most important thing is to not blow it under the air conditioner because of heat. Once you feel dizzy and dazzled, be sure to leave the air-conditioned room in time to breathe fresh air.
For the driver, if the car is not hot, do not immediately open the air conditioning, first open the window to discharge heat and then open the air conditioning, the temperature is not too low, and it is best not to smoke. In addition, do not open the air conditioning in the car to sleep, do not speak cold, if the engine out of the carbon monoxide leakage into the car is very easy to poisoning.
Susceptible people: people who work and study in offices, office buildings under central air-conditioning for a long time; people with brain and nervous system diseases such as migraine headaches; young men; people who are afraid of heat, and drivers.
Joints, gastrointestinal susceptibility to cold
Trick - take a warm bath and exercise more
Myth: Many people do not realize the long-term harm caused by blowing air-conditioning, that is, it is just a cold, dizziness and headaches, especially young and strong people do not care. As everyone knows, cold air damage to the joints is great, if you do not pay attention to keep warm, it is easy to suffer from arthritis at an older age, it is difficult to re-treatment.
Young people often do not pay much attention to the joint pain caused by air conditioning, but long-term air-conditioning has such problems. Summer outdoor hot air, people generally wear less, but the indoor air-conditioning air-cooled blowing, clothes so thin, such a low-temperature environment will stimulate rapid contraction of blood vessels, poor blood circulation, resulting in joint damage, cold, pain, like The neck and back stiffness, waist and limb pain, cold hands and feet numbness are common reactions.
In addition, too cold in the room can easily lead to weakening of the gastrointestinal motility, coupled with the summer's greedy coolness and frequent cold drinks. Both the inside and outside of the intestines are controlled by “coldâ€. It is not surprising that many people pull and vomit.
In fact, this autonomic nervous disorder caused by sympathetic nerve stimulation, young women are most likely to get, mainly in menstrual disorders. Nowadays, many white-collar women work in the office of the company, and they are under low-temperature air conditioning all the time. At the same time, they must wear short skirts. The physical constitution is relatively weak, and the hands and feet dissipate heat quickly, resulting in vasomotor imbalances. Such cold stimulation is likely to affect ovarian function, causing ovulation disorders, menstrual disorders or stomach pain.
Experts Tip: For a long time in the office, office work, especially those who often sit at the office, may wish to prepare a long-sleeve trousers in the company's clothes, especially young women, knee joints are best to use a towel or thick The clothes are protected, and at a time, they stand up for activities to enhance peripheral blood circulation. If there are elderly people and children in the family, the temperature of the air conditioner must not be too low, and it should be closed for a period of half an hour or an hour, or it should be cooled with natural wind as much as possible.
When you come home from work, you must first take a warm shower. Do not overheat the water so as not to irritate the nerves and joints. Then massage yourself or apply a warm towel on the joints. If you can exercise properly, such as running, playing, and doing exercises. Yoga is better.
Susceptible population: young women who work and study in the air-conditioned environment for a long time; poor resistance, weak constitution, osteoporosis of the elderly or underdeveloped children.
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