The winter solstice is the 22nd solar term among the 24 solar terms and the fourth solar term among the six solar terms in winter. The solstice in winter is a day when yin flourishes and yang declines, and it is also the coldest day of the year. It is called the winter solstice because the sun rises because of the cathode. After that, Yang from less to more, Yin from more to less. We also want to spend the coldest days in winter, which is commonly known as "Sanjiu". After beginning of winter's "March 9th" to Sunday, the weather was cold, and the yang in the body was just budding and relatively weak. At this time, it should be carefully protected and nursed back to health, just like farmers raising seedlings and women getting pregnant. In daily life, attention should be paid to avoiding the cold, taking more rest, exercising properly, calming down the mood and maintaining the original yang in the body, which is conducive to future growth and prosperity. Only when the yang in the human body is sufficient can the purpose of getting rid of diseases and prolonging life be achieved.

As the Yellow Emperor's Internal Classic said: "Winter and March are closed, and water and ice lie on the ground without disturbing the sun. If you lie down early and get up late, you must wait for the sun to come out, so that if you are selfish and have something to do, you will warm up when you are cold, so that you can seize the air urgently without leaking skin. This is the way to nourish qi in winter. On the contrary, it hurts the kidney, and spring is a fistula, and there are fewer people. "

In daily life, the specific guidance is as follows:

1, don't exercise too much, be quiet. In this way, Yin can prosper and live better. For example, a person loves sports at ordinary times, so he should reduce the amount of exercise appropriately from winter to around, so as to better adapt to the changes of nature and be better for his health.

2. Adjust the work and rest properly, try to go to bed early and get up late, do less physical or mental work, and keep your body and mind as quiet as possible, especially don't stay up late. Chinese medicine believes that staying up late is the easiest way to hurt yin, blood and yang.

On the solstice of winter, the yang in the human body is strong. At this time, tonic is the easiest to absorb foreign nutrition and play its nourishing role, so as to achieve the goal of getting twice the result with half the effort. Therefore, there is a saying of "winter tonic". Cordyceps sinensis, ginseng and aconite are three tonic drugs. It is a good choice to eat mutton, dog meat, pigeon meat and black food such as black rice, black beans, black sesame seeds, black dates, black fungus, black mushrooms and black-bone chicken. Winter is the season when all fruits are returned to the warehouse. Many nuts, such as walnuts, chestnuts, peanuts, pine nuts, hazelnuts and lotus seeds, have many functions, such as tonifying the kidney and strengthening the brain, caring skin and blackening hair. Eating them in winter has many benefits.

4. Below the diaphragm on the back of the human body is the Yin in the Yang, above the diaphragm is the Yang in the Yang, and Zhiyang point is the place where the Yin in the Yang reaches the Yang in the Yang, that is, the place where Yin and Yang intersect. Therefore, it has an aphrodisiac effect to massage the Zhiyang point on the back from winter to the day before and after.