What does the first frost mean?

The first frost is one of the traditional 24 solar terms in China, usually on1October 23rd or 24th, 10 every year. This solar term means the end of autumn and the beginning of winter.

1, the temperature plummeted.

The first frost means that the weather gets cold and the temperature drops. This is because the earth's orbit around the sun moves the direct point of the sun from the southern hemisphere to the northern hemisphere, and the weather system changes from tropical cyclone activity in summer to cold front and cold wave in winter. After the first frost, we usually feel the temperature is lower and the temperature difference between morning and evening is more obvious.

2. Dew condensation

In the first frost season, due to the low temperature, especially in the morning and evening, the water vapor in the air will condense into dew and even form a thin frost. This is because water vapor will reach saturation at low temperature and condense into water droplets or ice crystals.

This phenomenon can be seen not only in nature, but also in our daily life. For example, dew on the grass in the morning or thin frost on the windshield of a car are typical phenomena in the first frost season.

3. Plants wither

As the temperature drops, plants gradually lose their vitality. With the arrival of the first frost, the leaves began to change color and gradually fall off, and many plants went into a dormant state. The land is bleak, showing the scene of autumn. This is why this solar term is called "first frost".

4. Health care

Health care is particularly important in the first frost season. At this time, the human body needs more energy and nutrition to resist cold and dry weather. There is a folk proverb that "it is better to make up the first frost every year", which just shows the influence of this solar term on us.

Pay attention to diet and increase the intake of protein, fat and vitamins, such as nuts, grains, vegetables and fruits. In addition, it is necessary to maintain proper exercise and adequate sleep to enhance the body's immunity.

Frost's first food.

1, eat persimmons

In some parts of China, people eat red persimmons in the first frost season. In the eyes of local people, this can not only keep out the cold and keep warm, but also strengthen the bones and muscles. The old man in Quanzhou said that the first frost eats persimmons: the first frost eats persimmons, and the nose will not flow. In some places, the explanation of this custom is that the first frost will eat shuttlecock on this day, otherwise his lips will crack all winter.

Step 2 eat ducks

In southern Fujian and Taiwan Province Province, the first frost will take supplements on this day, which is often called "sticky autumn fertilizer" in the north. There is a proverb in southern Fujian called "it is better to make up the first frost in one year", which fully expresses the people in Fujian and Taiwan's attention to the first frost solar terms. Every time the first frost comes, the ducks in Fujian and Taiwan will sell well.

Step 3 eat beef

Residents in Yulin, Guangxi are used to eating fried noodles with beef river for breakfast, fried radish with beef for lunch or dinner, or beef brisket pot to replenish energy and pray for warmth and strength in winter. Besides beef, mutton and rabbit meat, it is also suitable for the first frost.