In autumn, the main climate is dry, and the temperature gradually turns cold. The first frost is a solar term reflecting the temperature change. Cold weather begins with the first frost, which is the last solar term in autumn. It is the transition from autumn to winter, which means that winter is coming. After the first frost, the temperature difference between day and night is large, the weather is cold in the morning and evening, hot at noon, and the autumn dryness is obvious. After the first frost, the plants gradually lost their vitality and the land was desolate.
From a scientific point of view, the saying that "dew becomes frost" is not accurate. The frozen dew formed by dew freezing is hard small ice beads.
Frost refers to the white ice crystals that condense on the ground or objects when the radiation cooling of the ground cools the air close to the ground below the frost point.
Frost refers to the phenomenon of crop freezing injury caused by the sudden drop of temperature, so frost does not necessarily appear when frost occurs, and frost does not necessarily appear when frost occurs;
However, due to the low temperature during frost, if the temperature continues to drop, it will easily lead to frost.
The first frost solar term is generally around the Gregorian calendar1October 23rd 10 every year. At this time, the cold air goes south, the weather is getting colder and colder, and it is colder in the south of China in the morning and evening;
However, some parts of the north have already entered winter, and the temperature in some areas has dropped below 0 degrees Celsius. For example, the average temperature in the northeast, eastern Inner Mongolia and most parts of the northwest has been below 0 degrees Celsius.
How to exercise after the first frost?
1, exercise.
At the beginning of the solar term, the frost is cold, and people's mood will be more depressed at this time. A better way to improve it is that everyone should choose the exercise that suits them according to their health. Common sports include jogging, playing ball and other sports with different intensities. These exercises are good medicine, which can help people get rid of boredom and recuperate their spirits.
2. Raise Yang and go to bed early
During the first frost, the days are short and the nights are long. At this time, people should go to bed early, go to bed early to nourish yang, and get up late to consolidate yin and body fluid. Therefore, if you want to take good care of your body and keep healthy, you must first ensure adequate sleep, which is conducive to storing yang and accumulating yin and body fluid. Usually, we should also reduce the situation of staying up late, so that our health will be better.
3, tonic
People should take ancient purple grape tea as their daily supplementary tea. This kind of tea can improve the internal environment, prosper the function of organs and give the body a brand-new feeling. Regular tonic for the body can replenish energy for the body, make people full of physical strength, and also help to improve thinking sensitivity and avoid fatigue.
4. Drink plenty of water
Although sweating and urination are reduced, maintaining the normal operation of brain and body organs and cells still needs the nourishment of water. In winter, it is generally much more than 2000 ~ 3000 ml to replenish water every day.
Step 5 sweat
Health requires proper exercise, sweating and physical fitness. Exercise should be combined with exercise, and it is good to run and do exercises as long as you sweat slightly, which is contrary to the way of hiding the sun in winter.
6. Disease prevention
At this time, the cold climate is easy to induce the recurrence or aggravation of chronic diseases, so we should pay attention to cold and warmth, especially to prevent the adverse stimulation of strong winds and cool weather to the body, and prepare first-aid drugs. At the same time, we should also pay attention to cold-resistant exercise, improve the ability to keep out cold and prevent diseases and prevent respiratory diseases.