A little poem about autumn

Cool in autumn and loose in the evening-Yang Wanli

Autumn is not inevitable sadness, but pleasant cold. The green pools are all red, but the lotus leaves are still open with the smallest money.

Autumn is one of the four seasons. Traditionally, China takes "beginning of autumn" in the 24 solar terms as the starting point of autumn. Entering autumn means that rainfall and humidity tend to decrease or decrease, and everything in nature begins to mature from lush.

At present, the four seasons are usually divided according to the average temperature of modern scholar Zhang Baokun. The index is that the average temperature is below 10℃ in winter, above 22℃ in summer, and 10~22℃ in spring or autumn.

Autumn is a season of alternating hot and cold. Early autumn is still in the heat, but it hasn't come out yet. This is the hottest, wettest and sultry period of the year. After late autumn, it is sunny during the day, cool and dry at night, with large temperature difference between morning and evening, less rain and insufficient water. Therefore, autumn dryness has become the main feature of late autumn.

Overall characteristics

Traditionally, China takes "beginning of autumn" in 24 solar terms as the starting point of autumn. The word "autumn" consists of the word "grain" and the word "fire", indicating the maturity of the five grains. After entering autumn, in nature, everything begins to mature from lush. Its climate began to change from rainy and humid in summer to dry and rainy in autumn.

astronomy

In autumn, the direct point of the sun gradually moves south from the northern hemisphere, passes through the equator after the autumnal equinox, and the sun directly shines in the southern hemisphere. Seen from the northern hemisphere, the angle of the sun gradually becomes lower, and the gap between day and night becomes smaller. At the autumnal equinox, the length of day and night is equal.

In autumn, the distance between the earth and the sun is from far to near. Seen from the ecliptic plane, the sun is on the background of Leo, Virgo and Libra.

Diet tips

Eat more acidic foods in the autumn diet. The climate in autumn is dry and the temperature difference is uncertain, so it is necessary to protect the liver function of the body. Acid should be added to the diet to enhance the function of the liver and resist the invasion of excessive lung qi. Traditional Chinese medicine believes that autumn is a transitional period between two seasons in Xia Dong, and the temperature changes from hot to cold, so health care should also change from "nourishing yang" to "nourishing yin".