Slight cold is the 23rd solar term among the 24 solar terms, the 5th solar term in winter, the end of the second month of the dry branch calendar and the beginning of the ugly month. Fighting fingers; The solar meridian is 285; It is celebrated on the 5th to 7th of the Gregorian calendar 1 month every year. The origin of the name of the slight cold solar term is explained in twenty-four solar term: "On the December Festival, the cold is still small at the beginning of the month, so the clouds are cloudy and the half moon is big."

Slight cold means cold air accumulated for a long time, which means that the weather is cold but not yet extreme. Like great cold, slight summer heat, great summer heat and summer heat, it is a solar term indicating the change of temperature.

Slight cold marks the official start of the winter season, and the two points below the word "cold" are ice. According to the meteorological data of China, slight cold is the solar term with the lowest temperature, and the temperature of great cold is lower than slight cold in only a few years. Traditional Chinese medicine believes that "spring grows in summer, autumn harvests in winter", and according to the fluctuation of yin and yang in nature, it is important to protect yang and conserve essence in winter, which is the so-called "way of nourishing Tibet", and storing is to accumulate energy.

Chinese medicine believes that the blood in the human body is easy to flow when it is warm, and it is easy to stagnate when it is cold. Therefore, in the slight cold season, we must do a good job in keeping warm, especially for women and the elderly. There is a folk saying that "wearing a cotton hat in winter is like wearing a cotton-padded jacket", which suggests the importance of keeping your head warm in winter.

Traditional Chinese medicine believes that movement leads to yang. Usually, you can choose walking, skipping rope, doing exercises and other sports according to your own situation to help you have yang. It should be noted that warm-up should be done before exercise, and start slowly with low intensity. Don't rest immediately after exercise, but slowly reduce the intensity of exercise. For some people who are weak or older, they can take an outdoor walk.