Cold Dew is the penultimate festival of autumn, when the northeast and northwest regions have entered or will soon enter winter. The first frost is visible in Beijing, the capital, most years, and snow has generally started to fall in the northeast and northern Xinjiang, except on the Tibetan Plateau, where snow flies all year round. If the “White Dew” festival marks the transition from hot to cool, the summer heat has not yet been completely eliminated, and the dew is visible in the morning. Then the “cold dew” festival is a symbol of the weather turning cool, marking the transition from cool to cold, dewdrops cold light, as the saying goes, “cold dew cold dew, cold dew everywhere”. In our ancient times, the cold dew was divided into three greetings: “One greeting for the arrival of the Hong Yan geese; two greetings for the birds to be big water for clams; three greetings for the chrysanthemums to have yellow flowers.” This season in the geese lined up in a word or herringbone queue south; late autumn cold, birds are missing, the ancients saw a lot of clams suddenly appear on the beach, and the shell stripes and colors are very similar to the birds, so they thought it was the birds into the; the third wait for the “chrysanthemum began to yellow” is that at this time the chrysanthemum has generally open. From the climatology know, after the cold dew, the cold air in the north has a certain force, most of China under the control of cold high pressure, the end of the rainy season. The weather is often warm in the day and cool at night, clear skies, a late-autumn scenery. History records that “the bucket finger cold A for cold dew, when the dew is cold and cold, will want to condense, so the name cold dew.” “The dew is cold, will condense.” Due to the arrival of cold dew, the climate from hot to cold, everything grows with the cold, gradually fall, this is the season of alternating hot and cold. In nature, the yin and yang qi begins to change, the yang qi gradually recedes, the yin qi gradually grows, and the human body’s physiological activities must also adapt to the changes in nature to ensure the physiological (yin and yang) balance in the body. Chinese medicine emphasizes “nourishing Yang in spring and summer, and nourishing Yin in autumn and winter” in the four seasons of health care. Therefore, it is important to take care of the yang energy in the body during the autumn season. When the climate becomes cold, it is the body’s Yang Qi convergence, Yin essence hidden in the time, so the main focus should be to maintain Yin essence, also said, autumn health care can not leave the principle of “to receive”. Since ancient times, autumn is the golden autumn, the lung in the five elements is gold, so the lung gas and the golden autumn gas corresponding, “the golden autumn time, dry gas when the order”, at this time the dryness of the evil gas easy to invade the body and deplete the lung of the Yin essence, if not properly nourished, the human body will appear dry throat, dry nose, dry skin and a series of symptoms of autumn dryness. Therefore, the dietary regimen at the end of autumn should be to nourish Yin and moisten dryness (lung) as appropriate. Ancient people said: “Autumn dryness, it is appropriate to eat hemp to moisten dryness.” At this time, should eat more sesame, glutinous rice, japonica rice, honey, dairy products and other soft moist food, while increasing chicken, duck, beef, pig liver, fish, shrimp, dates, yams, etc. to increase the body; less spicy food, such as chili, ginger, onion, garlic, because too much spicy food should hurt the human yin essence. Spiritual conditioning should not be ignored, because the climate is getting colder, sunshine is reduced, the wind is up and leaves are falling, often in the hearts of some people cause a sense of desolation, emotional instability, easy to sentimental melancholy mood. Therefore, to maintain a good state of mind, take advantage of the situation, vent the feelings of depression, cultivate optimism and open-mindedness is one of the indispensable elements of health care. In addition, when autumn is cool, people’s living time should also be adjusted accordingly. I found in my clinical treatment for many years that whenever the climate becomes cold, the number of patients suffering from cerebral thrombosis will increase, and the reason is related to the cold weather and the increase of people’s sleeping time, because when people sleep, the blood flow slows down and it is easy to form thrombosis. The Suwen Si Qi Tun Shen Da Lun clearly points out: “In March of autumn, sleep early and get up early, with the chicken.” In order to avoid the formation of blood clots, it is recommended that we follow the seasonal weather and take care of ourselves in time to ensure our health!