The older generation said: don't wash your hair and take a bath in solar terms. Why?

"The cold weather is the coldest, and it can prevent renal failure on September 9." . Slight cold is the 23rd solar term in 24 solar terms, and winter is the fifth of the six solar terms. Every year around the Gregorian calendar 65438+10.6, the longitude of the sun is 285, and the sun is in the east. Slight cold, although the word is called slight cold, is actually very cold, half a month old, so it is called slight cold, not without great cold. Because it is on March 9, it is the coldest time of the year, so there is a saying that it is cold on March 9. Most parts of China have entered the coldest period. "It's freezing in cold weather, and the most important thing is to prevent frostbite." The Great Cold is the 24th solar term among the 24 solar terms and the last solar term among the six solar terms in winter. Every year, the Gregorian calendar is around 65438+10.20, and the solar longitude is 300, which means ugly (northeast). The great cold solar term means extreme cold, and most parts of China have entered the coldest period. Beginning of spring is the 1 solar term among the 24 solar terms and the 1 solar term among the six solar terms in spring. Every year around February 4 of the Gregorian calendar. The longitude of the sun is 3 15, and the fingers are in the northeast. Beginning of spring's climate is characterized by warm in the south and cold in the north, and the climate changes greatly, so we should pay more attention to health preservation.