Dachan is the last of the twenty-four solar terms of the year. Every year, around January 20, when the sun reaches 300° of the ecliptic, it is the Big Chill. Dachan means that the weather is cold to the extreme. It is the coldest time of the year. Many people feel sick and are prone to get sick if they are not careful. Therefore, the cold season, we especially want to prevent the “five cold”. The five cold health prevention 1, lung cold: drink hot porridge to disperse the cold. Runny nose, cough, headache, cold and wind are the most common problems in winter. The symptoms are mild, you can use some pungent warmth to relieve the table, promote the lungs to disperse the cold ingredients. There is “a glutinous rice into soup, seven white onions and seven pieces of ginger, boiled into half a cup of vinegar, cold and flu to keep well”, can boil the soup warm to take after bed covered, slightly hot and a small sweat, to prevent lung cold. 2, prevent waist cold: hands rub waist warm kidney Yang. The two hands rub the waist to help unblock the belt vein, strengthen the waist spine and solidify the kidneys. Waist for the “belt vein” (around the waist of the meridians) where the line, especially the back of the spine on both sides of the kidneys are located. Specific practice is: the two hands rubbed hot, press the lumbar eye, pause for a moment, and then rub down to the tailbone (long strong points). Each time you do 50-100 times, once a day in the morning and evening. 3, anti-cervical cold: wear scarves and stand-up collars. Winter is the season of high incidence of cervical spondylosis. The neck is the body’s “fortress”, not only full of blood vessels, there are many important acupuncture points, such as the large vertebrae point, Fengchi point, and the shoulder well point extending to the shoulder. Wearing a stand-up collar is a good way to not only block the cold wind, to keep the neck warm, but also to avoid the head and neck blood vessels due to cold and contraction, to prevent hypertension, cardiovascular disease, insomnia, etc. have certain benefits. In addition, a decent scarf, silk scarf or shawl, can also help keep warm. 4, anti-nasal cold: morning cold water rub nose. After the cold weather “cool dry” more obvious, rhinitis has become a big problem for many people. At this point, it may be worthwhile to cold to cold. The specific practice is: every morning or before going out, with cold water to rub their noses. The actual fact is that you will find a lot of people who are not able to get a good deal on this. When you wash your nose with cold water, you can improve the blood circulation of the nasal mucosa and help relieve nasal congestion, sneezing and other allergic rhinitis symptoms. 5, anti-foot cold: commonly used hot water to rub the feet. Hot water foot rub to pay attention to three points. The first is the temperature, the water temperature is best around 40 ℃, the water submerged ankle joint. The second is the time, each soak for about 20 minutes, from time to time to add hot water to maintain the water temperature, the skin is slightly red after soaking is good. The third is the massage, soak feet after drying, massage the toes and palms of the feet with your hands for 2-3 minutes.