Scare: Generally, on March 5 and 6 of the solar calendar, "waking up after thunder" is a way of keeping in good health. At this time, the yang is exciting, turning into thunder, and everything is exciting.

Summer solstice: generally on June 2 1 or 22 in the solar calendar, and summer is big; To the extreme, extremely; Summer solstice, that is, everything is extremely prosperous and the sun is extremely strong. The yin and yang in nature have the characteristics of "extreme yang, one yin sprouting, and yin and yang intercourse"

The first frost: generally on the 23rd or 24th of the Gregorian calendar 10/0. Frost, mourning, yin coagulation and dew are frost, which kills everything. Everything is dormant for health, and the human body is ready to start tonic, reserve energy and resist yin cold.

The first frost is the last solar term in autumn, and it is a transitional period from late autumn to winter. As the saying goes, "the cold dew is not cold, and the first frost weather changes."

In the first frost season, cold air activities began to be frequent. With the continuous arrival of windy weather, the temperature drops rapidly and the weather gradually changes to winter.

Winter solstice: generally on June 65438+February 2 1 or 22 in the solar calendar. Winter, eventually; To the extreme, extremely; Winter solstice, that is, everything develops to the end, and the yin and cold are extremely heavy, so it is necessary to start a new cycle.