Since the winter, life activities have turned from prosperity to decline, from active to static. Good health care during this period can prolong life. During the winter solstice, the diet should be diversified, grains, fruits, meat and vegetables should be reasonably matched, and foods with high calcium should be selected appropriately. Eat a light diet, eat less and eat more meals, and pay attention to "three more and three less", that is, more: protein, vitamins and cellulose, and less: sugar, fat and salt. 1, keeping out the cold from winter solstice is the beginning of the "Nine Counties", and the primary task of health care from winter solstice is to keep warm and prevent cold. In the diet, it is mainly warm, such as eating glutinous rice, dog meat, jujube, longan, sesame, leek, fungus and so on. And eat less cold drinks, seafood and other cold food; Keep warm when you go out. When the temperature is low in the morning and evening, the elderly should go out as little as possible, keep warm moderately and exercise moderately. 2. After the winter solstice, the weather is cold and sunny. At this time, we should pay attention to "hiding", go to bed early and get up late, and don't be overworked; Don't be impatient and angry, so as not to disturb Zangyang. It is very important to tonify kidney. During the winter solstice, Yin Qi has reached its peak, while Yang Qi has begun to sprout. In line with this trend, keeping in good health from winter solstice should also nourish the yang properly. You can eat some medicinal foods such as mutton, medlar and leek, pay attention to the law of life, open the window regularly for air, and often breathe fresh air for outdoor physical exercise. 4. Yiyin Neijing has the saying of "nourishing yin in autumn and winter", while the winter climate in the north is generally dry and windy. Therefore, nourishing yin essence is also an important part of winter solstice health care. Usually, it is best to eat less spicy fried food, drink more water and eat more fruits, and properly ventilate the bedroom to maintain a certain humidity to prevent upper respiratory tract infection.