Some people say that winter begins to count to nine at every Geng, while others say that winter begins to count to nine the next day. When exactly does it start?

There is a saying "Jiujiu" in the China lunar calendar, which is used to calculate the seasons. The calculation method is from the solstice of winter (counting from the solstice of winter, indicating the beginning of cold), every nine days is a "nine", the first nine days are called "one nine", the last nine days are called "two nine", and so on until "nine nine nine", that is, until the ninth day, the number reaches 998 1 day. At this time, winter has passed and spring has arrived.

Winter solstice is the shortest day in a year, and it is also an important solar term for health care and treatment. "The winter solstice brings the sun", and the winter solstice is the day when the sun is born. Chinese medicine attaches great importance to its role in maintaining the sun. Chinese medicine believes that as soon as the yang is born, it should be carefully cared for and nursed back to health, just like farmers raising seedlings and women getting pregnant, so as to make it grow up gradually. The yang in the human body is sufficient, so as not to get sick or get sick less.