If the fence is opened, the spring rain will startle the clear valley sky, and the summer will be full of light. The summer heat will connect. Autumn dew, autumn cold frost, winter snow, winter small cold. A song called "24 Seasons Song" is widely circulated among the people in China. The 24 solar terms are a knowledge system and social practice formed by Chinese people by observing the annual movement of the sun and recognizing the changes in seasonal, climate, phenology, and other aspects of the year. Spring plowing, summer plowing, autumn harvest, winter storage, food and clothing farming, done according to the seasons, constantly flowing light, it is the language spoken by nature to us. As a unique mark of time for Chinese people, the 24 solar terms not only guide people's production and life, but also contain secrets to maintaining a healthy physique, reflecting the traditional Chinese medicine's idea of "conforming to nature and harmonizing yin and yang.". Traditional Chinese medicine advocates "correspondence between heaven and man", believing that humans are closely related to nature, and that changes in the human body and the occurrence of diseases are closely related to the 24 solar terms. Humans should adjust their body rhythms according to the laws of the four seasons, and achieve physical and mental balance and long-term health through harmonious coexistence with nature. In order to promote the culture of health preservation and disease prevention in the 24 solar terms, and inherit the wisdom of traditional Chinese medicine, the Health Edition of this newspaper will now launch the "Traditional Chinese Medicine Health Methods in the 24 solar terms" column. By introducing the different characteristics of each solar term, it will explain the traditional Chinese medicine health methods and help you master the methods of maintaining health and prolonging life. On February 4th, we will welcome the first of the twenty-four solar terms - the beginning of spring. At the beginning of spring, the spring energy is established, indicating that the cold winter is over and the spring spirit is budding. At this moment, the willow buds, tender as gold and soft as silk, and the eager grass in the soil are waiting for the spring breeze to come back to life. All things in the world are eagerly anticipating the true spring. Lichun, everything has just begun. In the poet's writing, the beginning of spring is when the east wind blows away the snow on the plum blossom branches. Overnight, spring arrives, and from then on, all things come back to life with a vibrant spring atmosphere. However, due to China's vast territory, large north-south span, and uneven natural rhythms in various regions, for most regions, only the prelude to spring has been played at this time. From a meteorological perspective, it is the first time in a year that the average daily temperature reaches 10 degrees Celsius or above for five consecutive days before spring begins. Except for some parts of the southern region, most parts of the country are still in a state of "the chill has not subsided, hoping for spring to come". The ancients divided each solar term into three seasons, with five days as one season. The three Marquises of Lichun are: one is when the east wind thaws; Second stage insects begin to vibrate; The three seasons of fish and chestnut bear ice. That is to say, in the first 5 days of the beginning of spring, the east wind brings warmth and the frozen earth begins to thaw; In another 5 days, the dormant insects slowly awaken in the cave; Another five days later, the ice in the river began to melt, and the fish began to happily move upstream. As the ice on the river surface had not completely melted, this situation was like the fish swimming on their backs, warm or cold at first glance! "In spring, a child's face changes three times a day." After the beginning of spring, the weather is variable, with a large temperature difference between morning and evening. In the view of traditional Chinese medicine, during the beginning of spring, when the yang energy gradually rises and the yin cold is not yet exhausted, it is suitable to "cover up in spring". This means that when the weather just turns warm, do not reduce clothing too early to prevent the spring cold from damaging the newly born yang energy. Older and weaker people should be more cautious when changing clothes and not reduce them suddenly. Sun Yat sen