The prevention and care of human body is as important as the treatment, and Chinese medicine emphasizes the holistic concept, that is, the idea of “the unity of heaven and man”. Then, the four seasons of health care is in accordance with the four seasons of spring, summer, autumn and winter cold, hot, warm, cool changes to health care. It means that health care should be synchronized with the weather. Chinese medicine believes that winter is the time to hide the essence of the season, winter tonic to the most appropriate period after the beginning of winter to before the spring. Winter health care mainly refers to diet, sleep, exercise, medicine and other means to achieve the purpose of maintaining the essence, strengthening the body and prolonging life. Winter refers to the months of October, November and December of the Chinese lunar calendar, including the six festivals of winter, snow, snow, winter solstice, cold and cold. In winter, the sky is cold, everything is withered, a scene of depression, how to preserve our essence, in life, living and walking, dressing and other aspects of the most important to comply with nature. Seasonal characteristics of health care winter climate is cold, cold stagnation collection lead, easy to lead to the human body qi, blood flow is not smooth, and many old diseases recurrence or aggravation. Especially those serious life-threatening diseases, such as stroke, cerebral hemorrhage, myocardial infarction, etc., not only a significantly higher incidence, but also a sharp increase in mortality. Therefore, winter health care should pay attention to prevent cold. In winter, the body’s Yang collection, Qi and blood tend to the inside, the skin is dense, water and moisture is not easy to drain from the body surface, but by the kidney, bladder gasification, a small part into fluid spread around the body, most of the water, the bladder into urine, invariably increased the burden on the kidneys, easy to lead to nephritis, enuresis, urinary incontinence, edema and other diseases. Therefore, winter health care should pay attention to the maintenance of the kidneys. The main way to maintain health The important principle of winter health is to “nourish the kidneys to prevent cold”. The kidney is the driving force of human life, the kidney is strong, strong vitality, the body can adapt to the changes of winter. The key to ensuring that the kidneys are strong is to prevent the cold climate from attacking. The diet should follow the principles of “nourishing yin in autumn and winter”, “nourishing the kidneys to prevent cold”, “no disturbance to the Yang”, diet to nourish the yin and Yang, increase the heat. 1, nourish the kidneys first cold within the kidneys. The kidney is the driving force of human life, is the body’s “innate essence”. In winter, the body’s yang energy inward, the body’s physiological activities also converge. At this time, the kidneys should not only prepare enough energy to maintain the winter heat expenditure, but also to store a certain amount of energy for the coming year, so it is vital to nourish the kidneys at this time. Diet should always pay attention to the kidney conditioning, pay attention to the calorie supplement, to eat more animal food and legumes, supplement vitamins and inorganic salts. Dog meat, mutton, goose, duck, soybeans, walnuts, chestnuts, fungus, sesame, sweet potatoes, radish, etc. are suitable food in winter. 2, warm food avoid hard sticky, cold food is mostly yin, winter eat this kind of food easy to damage the spleen and stomach. And food too hot easy to damage the esophagus, into the intestines and stomach, and easy to cause the body to accumulate heat and disease; food too cold, easy to stimulate the blood vessels of the spleen and stomach, so that the blood flow is not smooth, and the reduction of blood will seriously affect the blood circulation of other organs, to the detriment of human health, therefore, the winter diet should be warm and soft. 3, increase bitter less salty five flavors, salty into the kidney, especially in northern areas, heavy salt is also related to the cold. The function of the kidney in winter, if you eat more salty food, the kidney will be more vigorous, thus greatly harming the heart, so that the heart strength is weakened, affecting human health. Therefore, in winter, eat less salty food to prevent the kidney water from being too strong; eat more bitter food to benefit the heart and enhance the function of the kidneys, commonly used foods such as: betel nut, orange, pig liver, goat liver, dasheen, lettuce, vinegar, tea, etc.