Every spring, it is always necessary to mention the “inversion of the spring cold”. The “reverse spring chill” refers to the weather phenomenon in which the temperature rises quickly in March in early spring and is lower than normal in late spring (generally April or May). It refers to the spring season, the cold air suddenly attacked, resulting in a sudden drop in temperature, so that people feel the “spring chill”. Long-term rainy weather or frequent cold air attacks, or continued cold high-pressure control are prone to “spring chill”. As we all know, after a cold winter, the body’s ability to resist cold and disease has decreased. And the “inverted spring cold” is brought about by the temperature variability, the body can not withstand the sudden onslaught of cold air stimulation, directly affecting the defense function of the respiratory mucosa, the whole body’s resistance to disease overall decline, easy to make the body’s central plant nervous system disorders, resulting in a weakened regulatory function. At this time, germs, viruses and other pathogenic microorganisms can take advantage of the situation, leading to the prevalence, recurrence and aggravation of various diseases such as influenza, influenza, mumps, scarlet fever, whooping cough, bronchitis and viral hepatitis, peptic ulcer, chronic back and leg pain, and mental illness. Therefore, in order to prevent the threat of “spring fever”, we must pay attention to the following points: 1, dress appropriately for spring: for the spring external environment of temperature, humidity, air pressure changes, the human body’s physiological environment also undergoes adaptive changes. At this time, you should always pay attention to the weather forecast, appropriate to wear more clothes, by adding clothes to keep warm to deal with the “spring cold” to prevent the occurrence of disease. In addition, it should be reminded that the first warmth of spring is still cold, clothes should not be suddenly reduced, do not take off winter clothes prematurely, especially the elderly and weak people and people with low immunity should pay more attention to “spring cover”, in order to slowly adjust the body’s balance of yin and Yang, adapt to the “reverse spring cold” climate changes. The change. Of course, everything should be measured, “spring cover” if the cover is too thick and too strict is not desirable, should not feel cold and no sweat on the body is appropriate. 2., diet reasonable regulation: spring yang rise, metabolism began to flourish, Chinese medicine said “spring increasingly reduce acid increase sweet, to nourish the spleen.” And “spring should be cool, summer should be cold, autumn should be warm, winter should be hot, at this time of the appropriate, can not be disobeyed.” Therefore, spring to eat more cool food, diet should be light, sweet, warm products, avoid fried and fatty and greasy food. You can drink tea and ginger soup in moderation, eat more celery, garlic, onions, mushrooms and black fungus and other foods that are conducive to enhancing immunity, because the tea pigment in tea can effectively counteract the agglomeration of fibrinogen and inhibit the adhesion and aggregation of platelets; certain ingredients in black fungus can effectively reduce blood viscosity and prevent blood clotting, all of which help spring sun rise and prevent spring sleepiness and enhance the body’s ability to fight The ability of the body to fight against the “cold spring”. 3, pay attention to the living room hygiene: such as keeping the living room and the surrounding environment clean and hygienic, often open the windows for ventilation, keep the indoor air fresh and sunny, so that a variety of germs lose the conditions for breeding. Wash your hands more often, because this is an important means to reduce exposure to pathogenic microorganisms. In addition, pay attention to the indoor temperature, it is recommended to control the conditions at 16 to 20 ℃ is more appropriate, if necessary, the home can use electric heating and other equipment to warm. The quilt should be covered a little thicker when sleeping, in order not to sweat. 4, strengthen sports and fitness: spring often outdoor exercise, such as taijiquan, aerobics, kite flying, climbing and other outdoor fitness activities, can effectively enhance the body’s immunity and resistance to disease, is conducive to resist the “spring cold” attack, and to reduce the occurrence of respiratory diseases throughout the year, the foundation. Through physical exercise, the blood flow of coronary arteries can also be increased significantly, which can ensure the blood supply of the brain, heart and other important organs, not only energize people, but also reduce the occurrence of cardiovascular diseases. At the same time physical exercise can also reduce the autonomic dysfunction caused by mental tension, anxiety, depression and other symptoms, which is beneficial to physical and mental health. 5, pay attention to mental health care: in winter people are more indoor activities, due to less access to nature, interpersonal interaction is also relatively reduced, at this time, people have a feeling of depression, closed confusion. In the spring when the sun is bright, more contact with nature, more communication with friends, as indicated by their hobbies, do some civilized and useful activities to overcome the monotonous lifestyle, which will undoubtedly be beneficial to the maintenance of physical and mental health.