Autumn equinox leaves are getting colder and colder, and the days are short and the nights are long.

The autumn equinox leaves are getting colder, and the days are short, the nights are long, and the cold and summer are flat. This sentence means that in the autumn equinox, the leaves begin to fall, and the weather is getting colder. On this day, the time of day and night is equal, and the cold and summer are relatively balanced.

the autumnal equinox is one of the 24 solar terms, which usually occurs on September 22nd or 23rd every year. On this day, the sun shines directly on the equator, and the time between day and night is equal all over the world. In the traditional culture of China, the autumnal equinox marks the official start of autumn.

With the advent of the autumnal equinox, the temperature gradually drops and the weather becomes cooler and cooler. This is because the direct point of the sun gradually moves south, and the northern hemisphere gets less and less solar radiation, and the temperature also drops. At this time, the leaves began to change color and fall, and the earth gradually became bleak.

due to the rotation and revolution of the earth, the time of day and night is equal at the autumnal equinox. This means that on the day of the autumnal equinox, the time of sunrise and sunset is the same, and day and night account for 12 hours each.

after the autumnal equinox, the days in the northern hemisphere will gradually shorten and the nights will gradually lengthen. Cold and summer mean that the temperature is relatively balanced at this time, neither too hot nor too cold. This is because in the autumn equinox, the heat wave in summer has passed, and the cold in winter has not yet arrived. The temperature is suitable at this time, and people can feel cool and pleasant weather.

Taboo in the autumn equinox:

1. Avoid sexual intercourse: In the autumn equinox, the ancients thought that sexual intercourse should be avoided, because it would consume the yang of the human body and easily lead to physical fatigue and weakness. In addition, autumn is the season of health preservation, so we should pay attention to maintaining the body and avoid excessive consumption.

2. Avoid cold food: In the autumn equinox, the temperature gradually drops, and the digestive function of the human body will be weakened. Therefore, excessive consumption of cold food, such as sashimi and cold drinks, should be avoided. These foods are easy to stimulate the gastrointestinal tract, causing symptoms such as diarrhea and abdominal pain, which is not good for health.

3. Don't add clothes too early: Don't add clothes too early, even though the weather is getting colder in the autumn equinox. This is because adding clothes too early will make the body unable to adapt to the change of temperature and easily lead to diseases such as colds. Therefore, clothes should be gradually added according to the change of temperature to maintain the adaptability of the body.

4. Avoid staying up late: During the autumnal equinox, you should get enough sleep and avoid staying up too late. This is because autumn is the season of health preservation, and adequate sleep helps to maintain the body and enhance immunity. In addition, staying up late can easily lead to physical fatigue and weakness, which is not good for health.