Winter solstice is one of the twenty-four solar terms and one of the most important solar terms. Winter solstice is a solar term divided by astronomy, which was called "short day" and "short day" in ancient times. On the solstice in winter, the sun is at 270 degrees of the yellow meridian, and the sun shines directly on the tropic of Capricorn, which is the shortest place in the northern hemisphere in a year. Accordingly, the winter solstice in the southern hemisphere has the longest day. "Twenty-four solar terms" said: "On November 15th, the gas storage finally came to an end." . "Tong Wei Xiao Zhu Shen": "The fifteenth day after the heavy snow is the winter solstice, in mid-November. Yin and Yang began, and the sky went south and grew up. " "Zunxian Manuscript" said: "The day is south, the day is short, and the shadow is long, so it is called the winter solstice. People who' want' are extremely excellent. " It can be seen that our ancients have long known this. Although the height of the reference sun is the lowest and the sunshine time is the shortest in winter solstice, the heat absorbed by the ground is more than the heat lost. After the winter solstice, it begins to count to nine, and every nine days is a "nine". Around March 9th, the heat accumulated on the ground is the least, and the weather is the coldest, so it is said to be "cold on March 9th", while September 9th is already 1 February in the summer calendar, and most parts of China have entered spring, so it is "sunny on September 9th".

Lu even said that the winter solstice is as big as a year. This shows that the ancients attached great importance to the winter solstice. People think that the winter solstice is a natural transformation of Yin and Yang and a blessing from heaven. In the Han Dynasty, the winter solstice was the "Winter Festival", and the government held a congratulatory ceremony called "He Dong", which was a routine festival. There is such a record in the Book of the Later Han Dynasty: "Before and after the winter solstice, a gentleman was prepared for danger in times of peace, refused to listen to politics, and chose an auspicious day to save trouble." So on this day, the imperial court had a holiday, the army was on standby, the frontier fortress was closed, the business trip was closed, relatives and friends sent meals to each other, visited each other, and had a "quiet" holiday happily.

The solstice in winter is a good time for health preservation, mainly because "Qi starts from the solstice in winter". Because from beginning of winter, life activities began to turn from prosperity to decline, from dynamic to static. At this time, scientific health preservation helps to ensure vigorous energy and prevent premature aging, thus achieving the purpose of prolonging 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. The food should be light, and you can't eat thick, greasy and salty food. In winter, the yang is weak, and the spleen likes warm and hates cold. It is advisable to eat warm and tonic products to protect the spleen and kidney. Eat less and eat more. Pay attention to "three more and three less", that is, there are more protein, vitamins and cellulose, and less sugar, fat and salt. The winter solstice this year is on February 22, 65438. Moxibustion in winter solstice is a very important way to keep fit, so don't miss the best fitness opportunity.

There are four taboos in winter solstice tonic.

Never eat dog meat blindly. Some people with weak constitution and arthritis are good at eating more dog meat in severe winter. But it is not advisable to eat dog meat blindly, so as not to get rabies after eating rabies meat. Do not drink tea after eating dog meat. This is because tannic acid in tea combines with protein in dog meat to produce a substance. This substance has a certain astringent effect, which can weaken intestinal peristalsis and reduce the moisture in the stool.

Second, avoid the difference between reality and reality. The treatment principle of TCM is "tonifying deficiency". Deficiency is tonic, and deficiency is normal diet. Experts believe that the main function of tonic is to "supplement deficiency and benefit loss". Deficiency is divided into four types: qi deficiency, blood deficiency, yin deficiency and yang deficiency, and each has its own tonic methods.

Three taboos advocate tonic. Not everyone can drink chicken soup. The nutrients in chicken soup are a small amount of water-soluble small molecules dissolved from chicken oil, chicken skin, chicken meat and chicken bones, and its protein is only about 7% of that of chicken meat. Most of the chicken oil in the soup belongs to saturated fatty acids. Therefore, patients with biliary tract diseases, such as cholecystitis and gallstones, often occur, and those with renal insufficiency should not drink more chicken soup.

Four bogey tonics. Taking tonic when you are not sick will not only increase your expenses, but also damage your health. For example, eating too much cod liver oil will lead to poisoning, and eating glucose for a long time will lead to obesity. In addition, the more tonic, the better.