2 1 23:59 winter solstice: a sign of winter.

Beijing time 65438+February 2 1 23: 59 will usher in the winter solstice solar terms, and the northern hemisphere will usher in the shortest day of the year.

On the 20th or 22nd of the Gregorian calendar (65438+February, 265438+February) every year, when the sun reaches 270 degrees of the yellow meridian, the winter solstice solar term begins. It is the 22nd solar term among the 24 solar terms and the fourth solar term in winter. From winter to Sunday, the sun shines almost directly on the tropic of Capricorn, and the northern hemisphere has the least sunshine and the shortest day, so the qi finally hides. Since then, although the nights are getting shorter and the days are getting longer, the heat savings on the surface are getting less and less. When the coldest cold weather comes in a year, it takes 998 1 day to return to the earth in spring.

The winter solstice is not only an important solar term, but also an important festival in ancient China.

The ancients believed that the natural transformation of Yin and Yang and the gradual rise of Yang Qi began? Winter solstice? . During the Zhou and Qin dynasties, to? Winter solstice? In the first year, the whole country celebrated; Because? Winter solstice? It's always in November, so November is also called? Winter moon? . The first month of the Han Dynasty is the beginning of a year. Winter solstice? For what? Winter Festival? , or pay equal attention at the beginning of the year, don't listen to politics? Does the government have it? He dong? Ceremony, officialdom? Worship winter? Etiquette and customs, what do people have? Is the winter solstice as big as a year? Said. Has it been popular since the Tang and Song Dynasties? Winter solstice? Worship ancestors. In the Ming and Qing Dynasties, where was the emperor? Winter solstice? In the countryside, he dongbi and Ji fu sacrificed to heaven for three days, and worshipped each other with red notes, while Zhu Yi sacrificed to heaven, just like Chinese new year? . Since ancient times, people have said? Winter solstice? Traditional customs vary greatly from place to place, and most of them are eaten in the north? Winter solstice wonton? What does it stand for? Winter solstice? For what? At the beginning of chaos, of course, some people ate jiaozi, such as the northeast, while the south, especially Jiangnan, generally ate Italian food? Reunion? Sweet jiaozi.

It's freezing, and winter is coming. How should the public adjust their diet and daily life and do a good job in health care?

At this time, the human body needs enough energy to keep out the cold. Meat is rich in protein, fat, carbohydrates, calcium and other nutrients, and it is a good tonic. However, attention should be paid to the diversity of diet, and cereals, fruits and vegetables should be reasonably matched. Cold winter is the high incidence period of respiratory infectious diseases. Attention should be paid to keeping the mouth and nasopharynx clean, paying attention to indoor air circulation, and taking appropriate exercise to keep out the cold, so as to improve the body's cold resistance. The focus of health care is to nourish the heart and keep a good mood at all times, which can improve the immune function of the human body in winter; With the arrival of severe cold, the contraction of human blood vessels intensifies, the condition of patients with heart disease and hypertension tends to worsen, and the number of patients with stroke will also increase. Therefore, elderly patients with basic diseases should do a good job of cold prevention and warmth, adhere to daily medication, and seek medical advice in time if they are not suitable.