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Today is the solar term of light snow in the lunar calendar. What's special about this period? What should we pay attention to in health care?
Light snow-solar terms

Brief introduction of Xiao Xue

Every year165438+1October 22 or 23, when the sun reaches 240, it is a light snow, which is also a Scorpio (10/23-1121) and a Sagittarius.

There is a saying in "Twenty-four solar terms": "In the middle of June of 5438+00, it rained and was blown thin by the cold, so it condensed into snow. The words of the villain are not prosperous. " During this period, the weather gradually became cold, and the average first snow period in the middle and lower reaches of the Yellow River was basically the same as the Light Snow Festival. Although it began to snow, the amount of snow was generally small, and it was frozen at night and turned around by day. If the cold air is strong and the warm and humid airflow is active, it may snow heavily. For example, on June 5438+0993165438+1October 15 ~ 20, there were heavy snowstorms in some winter wheat areas in the north.

climate

With the coming of winter, the climate is getting colder and colder. Not only the dew on the ground turns into frost, but also the rain in the sky turns into snowflakes. After the snow fell, the earth was covered with white clothes. However, because the weather at this time is not too cold, the snow is often half frozen and half melted, or melts immediately after landing, which is called "wet snow" in meteorology; Sometimes rain and snow fall together, which is called "sleet"; Sometimes white ice particles as big as rice grains fall, which is called "rice snow". The light snow solar term precipitation is still scarce, which is far from meeting the needs of winter wheat. Morning fog is not just the last solar term.

Light snow indicates the beginning time and degree of snowfall. Snow is the product of cold weather. Light snow solar terms, the northern part of the southern region began to enter winter. "There is no rain in the lotus, but there are frost branches in the chrysanthemum", which has already shown the scene of early winter. Due to the barrier of Qinling Mountain and Daba Mountain in the north, the invasion of cold air is blocked and the cold wave is weakened. The "warm winter" in South China is remarkable. The number of snowfall days in the whole year is mostly less than 5 days, which is much less than that in the middle and lower reaches of the Yangtze River at the same latitude. There is little possibility of snow before the heavy snow. Because the surface temperature in South China is often above 0℃ in winter, it is more difficult to snow than to snow. In the cold northwest plateau, it usually begins to snow all the year round 10. The number of snowfall days in the northwest of the plateau can reach more than 60 days a year, and snowfall is possible in some alpine regions all year round.

Health maintenance

Pay attention to moistening dryness

1, properly open the window for ventilation, maintain indoor air circulation and humidity, and stay away from dryness and flu.

For the old people who have the habit of doing morning exercises, it is best to arrange the exercise after sunrise or in the afternoon.

Eat more fruits and vegetables containing folic acid to fight depression.

1. To keep a cheerful attitude, you can often take part in some outdoor activities to strengthen your physique and get more sunshine.

2. Eat spinach, kiwi fruit, oysters, oranges, soybeans and dark green vegetables regularly, because these foods contain folic acid, which can help fight depression.