Brief introduction of cold dew

Cold dew is one of the twenty-four solar terms in China lunar calendar, which belongs to the seventeenth and fifth solar terms in autumn. The arrival of cold dew indicates that late autumn has begun. Let's share a brief introduction about cold dew.

Introduction to Cold Dew 1 Cold Dew is

What is the origin of cold dew?

Cold dew is a solar term reflecting the characteristics of climate change. The twenty-four solar terms say: "In September, the dew is cold and will condense." The meaning in the work is that the temperature of cold dew is lower than that of white dew, and the morning dew on the ground is cold and about to condense. The ancients gradually regarded cold dew as a sign of cold. After the "cold dew" solar term, the hot air subsided, the cold became longer and the weather gradually turned cold. As the saying goes, "White dew does not show, cold dew feet do not show."

So the origin of the name cold dew comes from the climate characteristics of that time period.

What is the temperature of the cold dew?

"Cold dew" is a festival in late autumn, and the word "cold" first appeared in the 24 solar terms. If "white dew" is the transition from hot to cold, "cold dew" is the turning point from cold to cold. After the cold dew solar terms, the days become shorter, the nights become longer, the sunshine decreases, the hot air recedes slowly, the cold gradually increases, the temperature difference between day and night is larger, it is slightly chilly in the morning and evening, and the air is relatively dry. After the cold dew, the temperature in most parts of the south continued to drop, and the daily average temperature in South China was less than 20℃. Even in the areas along the Yangtze River, it is difficult for the mercury column to rise above 30℃, while the minimum temperature can drop below 10℃ (due to global warming, the above-mentioned daily average temperature may deviate). Except for a few valley lowlands, the five-day average temperature in the northwest plateau is generally lower than 10℃, which is already winter according to the standard of four seasons climate division. Thousands of miles of frost shops, snow in Wan Li, are very different from the autumn colors in the south.

Introduction to Cold Dew 2 During the cold dew season, Nanling and the vast areas in the north have entered autumn, and the northeast and northwest regions have entered or are about to enter winter. In the capital Beijing, you can see the first frost in many years. In addition to the perennial snow on the Qinghai-Tibet Plateau, it has generally begun to snow in the northeast and northern Xinjiang.

In China, the cold dew is divided into three stages: "The first stage is the swan goose; Second, the sparrow enters the water and becomes a clam; Three chrysanthemums have yellow flowers. " In this solar term, geese move south in a line or herringbone queue; In the cold late autumn, all the birds disappeared. The ancients saw a large number of clams suddenly appearing on the seashore. The stripes and colors of shells were very similar to those of birds, and they thought they were birds. The third stage of "Chrysanthemum begins to blossom" means that the chrysanthemum has opened in a large area at this time.

After the cold dew, the dew increases and the temperature decreases. At this time, frost will appear in some parts of China. In the north, it is already a scene of late autumn, with white clouds and red leaves and occasional early frost. In the south, autumn is getting stronger and cicadas are dying. The custom of climbing mountains in Beijing is more prosperous. Jingshan Park, Badachu and Xiangshan are all good places to climb mountains. The Double Ninth Festival will attract many tourists.

In China, cold dew is traditionally regarded as a sign of cold weather. The solar term of the Mid-Autumn White Dew is "dew condenses white", and it is already "dew cold, it will condense into frost" when it is cold in season and autumn.

At this time, the temperature in most parts of South China continued to drop. The average daily temperature in South China is less than 20℃. Even in the areas along the Yangtze River, it is difficult for the mercury column to rise above 30℃, while the minimum temperature can be reduced to below 10℃. Except for a few valley lowlands, the five-day average temperature in the northwest plateau is generally lower than 10℃, which is already winter according to the standard of four seasons climate division. Thousands of miles away, first frost and Wan Li are snowing, which is very different from autumn in South China.

prescribe a diet

Dietary health care should be based on a balanced diet of five flavors, and according to individual specific circumstances, eat more sweet, light and moist foods, which can not only replenish the spleen and stomach, but also moisten the lungs and intestines, and prevent dry throat.

Fruits include pears, persimmons and bananas. Vegetables include carrots, wax gourd, lotus root, tremella and beans, fungi, kelp and seaweed.

Eat warm food for breakfast, and it is best to drink hot medicinal porridge, because both japonica rice and glutinous rice have good functions of strengthening the spleen and stomach and invigorating the middle qi, such as sugarcane porridge, Yuzhu porridge, Adenophora adenophora porridge, raw porridge, Yuzhu porridge and so on.

Middle-aged and elderly people and patients with chronic diseases should eat more red dates, lotus seeds, yams, ducks, fish, meat and other foods.