As the temperature in Wuhan has dropped recently, there is a proverb, "Cover the cold in spring and autumn, and avoid miscellaneous diseases". Is there any scientific truth in this saying? Can autumn really "freeze"? Zhang Jixian, the director of the Department of Respiratory Medicine of Hubei Integrated Hospital of Traditional Chinese and Western Medicine, believes that the weather turns cool in autumn. Although "covering the winter with spring" is a classic key to health preservation, "freezing in autumn" should be carried out in a scientific and orderly manner. Why do you want "frozen in autumn"? From the perspective of western medicine, after the drastic climate change, the body's own temperature has not been rapidly adjusted in place, and the immune function has not been rapidly adjusted, so it is easy to get sick. When the body is stimulated by a little cold, the muscles will contract and generate heat. The immune cell function in the body will be better activated, and the human immune system will be improved. It is equivalent to a preventive injection, which requires a small amount of stimulation to let the body adapt to the environment bit by bit. Therefore, "freezing in autumn" is actually a kind of cold endurance exercise, which can improve the human body's ability to adapt to low temperatures and strengthen the body to adapt to the arrival of cold winter. How to scientifically "freeze in autumn"? Everyone feels different, and there is no uniform standard for "autumn frost". However, "autumn frost" is not "getting cold". First, it means that "autumn is not busy to add clothes", and second, it means "delaying the time to add clothes". We should properly accept the cold stimulus and not wear too warm all of a sudden, but we should also not let the body get cold, so that we can feel a little cold but not cold. Older people with basic diseases should add clothes at the right time, step by step. If the degree of "autumn frost" is not well controlled, it is easy to get cold. The physical function of the elderly is declining, and they are vulnerable to the invasion of pathogenic microorganisms. In particular, some patients with chronic diseases have weak physical resistance and are more difficult to deal with influenza virus. Which old people are hurt more by cold? Patients with chronic obstructive pulmonary disease. If the temperature changes too much, the cold air stimulation will lead to the decrease of the resistance of the injured respiratory mucosa, and the flu virus and other pathogenic microorganisms enter the lungs, making the original disease attack or aggravate. I am a patient with diabetes. Once the patient has a cold, the high blood sugar level is equivalent to providing more nutrients for pathogenic microorganisms. If stronger drugs are used, the metabolism of these drugs may aggravate the damage to the liver and kidney. Patients with cardiovascular disease. Inflammation, cough, fever and other symptoms caused by a cold can accelerate the heartbeat, increase the burden on the heart, and may also promote heart failure, increase angina, and even cause acute myocardial infarction. Severe cough may also break the sclerotic cerebral vessels and cause cerebral hemorrhage. How does a cold recover quickly? For young people, the disease usually lasts for 5-7 days. Their own immune regulation function can eliminate the invading pathogens. Because 70% of colds are caused by viruses, they are infectious. Therefore, young people who have a cold mainly rest at home. Don't be tired and drink more water. If the cold symptoms do not improve after many days, you must go to the hospital for treatment as early as possible to reduce the symptoms and shorten the course of the disease. For the elderly, don't carry a cold at home. Because most elderly people have basic diseases, colds may aggravate other diseases, which requires the professional judgment of medical personnel. Therefore, the elderly must see a doctor in time when they have a cold. Do not take medicine indiscriminately. (Outlook New Times)