Original Title: Special Issue | Great Heat Today
Source: Tianjin University of Technology
At 22:26 on July 22, Beijing time, the “Great Heat” solar term will usher in. This is the hottest time of the year. There will be high temperature weather in many parts of our country. The public should pay attention to heatstroke prevention and cooling.
According to Luo Shuwei, a historian and researcher at the Tianjin Academy of Social Sciences, every year around July 23 of the Gregorian calendar, when the sun reaches 120 degrees of the yellow longitude, it is the “Great Heat”. It is the twelfth solar term in the twenty-four solar terms, and it is also summer. The last solar term. “Great heat”, like “Xiaoshu”, still represents the solar terms of summer heat. The ancients believed that “the big one is the extreme heat.” In other words, “the great heat” is the time of the year when “steaming up and down cooking” and “steaming hot and humid” reach the extreme point of the year.
Like other solar terms, “Great Heat” also takes five days as a one-period, divided into “three-periods”: “The first quarter is a firefly, the second quarter is moisturized by the soil, and the third quarter is heavy rain.” It means, the first quarter. The firefly eggs on the rotten grass melted and flew; the weather became sultry in the second quarter, and the land became humid; and the storms of “wind like a raging mountain and rain like a river flooding” often appeared in the third quarter.
The Southern Song Dynasty poet Zeng Ji said in his poem “The Great Heat”: “When will the red sun pass, the breeze is nowhere to be found. The scriptures talk about the pillows, and the melons and plums are floating and sinking.” While trying to ask when the scorching sun will pass, he hopes to be able to pass. There was a breeze.
In the face of such scorching heat, the ancients also had many remedies to cool off the heat. The Southern Dynasty poet Xu Mian wrote: “Xia Jing hates the house, and encourages the table to play with the flowers. The lotus shade is slanted together with the green, and the lotus shadow divides the red.” It is very pleasant to enjoy the lotus by the waterside pavilion; Zhou Bangyan, a poet in the Song Dynasty “Liao agarwood, dissipate the rush of heat”, use incense to cool off the heat; in the Tang Dynasty, a poet Bai Juyi wrote “There is no long thing in front of me, there is a breeze under the window”, expressing a calm mind and a natural cool state of mind.
“Great heat” is the hottest and most humid season of the year. Luo Shuwei combined with folk traditions and health experts’ advice and said that the focus of health care at this time is “prevention of heatstroke” and “elimination of dampness.”
Due to the hot and humid weather, short days and short nights, people’s physical energy is exhausted, and people often have symptoms of “bitter summer” such as physical discomfort. Therefore, it is necessary to reduce outdoor activities as much as possible, and pay attention to indoor cooling, hydration, and work-rest combined; three meals a day Choose foods that clear away heat and heat, invigorate the spleen and promote dampness, nourish yin and replenish qi, as well as foods rich in protein, containing B vitamins and antioxidants, such as mung bean, winter melon, tomato, cucumber, watermelon, carrot, yam, jujube, lily, Lotus seeds, chrysanthemums, whole wheat and nut foods.
“In the hot summer, reasonable arrangements for daily life, scientific diet, attention to relaxation and strengthening of self-regulation are necessary guarantees for a cool summer.” Luo Shuwei said.
Source | People’s Daily Online
Editor | Dai Yihong Liu Jingyu
Responsible Editor | Dai Yihong Liu Jingyu
Audit | Xu Yan Yu Xiaolei
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