What does the so-called "March 9 winter" mean?

"March 9th" refers to the third "nine days" after the winter solstice, that is, the 19th to 27th days after the winter solstice. There is a proverb "Nine Jiu Ge" in China, which is used to calculate the seasons. Generally, it is the coldest in "Sanjiu". Therefore, it is called "Sanjiu Winter". The winter of the solstice began, and 27 days later, it will be the winter of March 9.

There is a folk saying in our country that it is cold on March 9th. "March 9" is mostly 65438+1October 9 to 17, which is also just within the slight cold solar terms. As the saying goes, "the north wind blows in cold days, and it is on February 29 when it is slightly cold." Meteorological data show that the days are short and the nights are long in the slight cold season, and the sunshine is not strong. The northwest wind blows in most parts of China, and the Siberian cold current often strikes.

Working people have experienced thousands of years of struggle against the severe cold and snow, and based on their long-term practical experience, they have created many "Jiujiu Songs" that describe the changes in temperature and humidity during the Jiujiu period. For example, 99 folk songs popular in the north:

Do not count from nine to nine; 1929 did not shoot; Walking on the ice in 3949;

5969 see willows along the river; Seven or nine rivers open and eight or nine swallows come; 99 and19; Cows plow everywhere.

Extended data:

In the winter of March 9, the temperature ushered in the freezing point. As the saying goes, "3949" is the coldest time of the year. When you go out, you must pay attention to adding clothes to keep warm.

It is understood that when the ambient temperature is 15℃, the heat lost by the head accounts for 30% of the total heat dissipation of the human body, 60% at 4℃ and 75% at-0/5℃. Therefore, special attention should be paid to keeping warm exposed body parts, such as head and hands. Especially children should pay attention to prevent freezing to their ears.

"Nourishing yang in spring and summer, nourishing yin in autumn and winter", experts remind that the principle of health preservation in cold season is to collect essence, consolidate the foundation and support the yuan, and focus on cold kidney.

First, do more exercise to promote faster blood flow and warm the body;

The second is to pay attention to cold and warmth, especially the head, abdomen and feet. Develop the habit of soaking feet in hot water, and don't sleep against the wall at night to prevent "cold radiation";

Third, eat more warm tonic foods, such as trout, shepherd's purse, asparagus, pumpkin, cashew nuts, yam, jujube, longan and mutton. , not only warm the body, but also nourish the body.

In addition, many people like to make a pot of tea and drink some hot tea in cold weather to dispel the chill. Tea has always been one of the most popular drinks in China. At present, many kinds of tea gradually enrich people's choices. Tea not only quenches thirst, but also plays an important role in health preservation because it contains tea polyphenols beneficial to human health.

However, due to different personal preferences and constitutions, the tea suitable for everyone is different. Pay attention to selective warm tea in winter to effectively dispel the chill.

Baidu encyclopedia-Sanjiu cold

Xinhuanet-Popular Science > Text > "Slight Cold" 23: 39 on the 5th: It was the coldest time in 239 years.

Xinhuanet? Military > Text > Military doctor's advice: Drink more warm tea in the winter of March 9.