"Cold in late spring" refers to the weather in spring, which means the weather is erratic and the temperature difference is very large after the beginning of spring, so will it be cold after the beginning of spring? How to keep healthy after spring? Follow Xiaobian to learn about the health Customs after Spring Festival.
Is it still cold after spring? -- of course, it will be cold after spring
In ancient China, the 15 days of spring were divided into three periods: 'the first period was when the east wind thawed, the second period was when the jellyfish began to vibrate, and the third period was when the fish and the shoots were under ice'.
Spring is not spring. "Li" means "to be", although not, but soon. As the saying goes: don't be happy in spring, there are still 40 cold days. 'cold spring' is also very cold. Therefore, don't neglect the change of temperature just because spring comes.
Cold air may invade in late spring
In the late spring (generally referred to as April), the temperature is lower than that in normal years. In the long-term rainy weather or frequent cold air invasion, or under the control of continuous cold and high pressure, strong radiation cooling on a clear night is likely to cause cold in late spring.
How to keep healthy after spring?
First, appropriate 'spring cover', don't take off your winter clothes immediately because the temperature is temporarily increased, sooner or later the temperature is lower, pay attention to keep warm. Second, we should eat more spleen and stomach foods, such as chicken, duck, lean meat, eggs, vegetables, fruits, etc., which are rich in vitamins and trace elements and easy to digest. Third, it is necessary to ensure timely indoor dust removal and ventilation to reduce and inhibit the survival and reproduction of pathogens. Fourth, we should properly carry out outdoor activities and breathe fresh air to improve cardiopulmonary function, so that the body can better adjust to the changing climate in spring.
But we should pay more attention to spring exercise. First of all, spring exercise should not be too early. In spring morning, the fog is heavy and the temperature is low. All kinds of bacteria are in an active breeding period in spring, and they are easy to diffuse in the air. In addition, if there is more dust and fog, they are not suitable for exercise; In addition, spring exercise should not be too fierce, because people's muscles and ligaments are still relatively stiff, if not fully prepared before exercise, it is easy to sprain. Preparation activities can choose to walk, run and other full-body exercises to help open the whole body muscles. Fifth, drink more water, which not only helps to keep the blood flow unblocked, but also can prevent respiratory diseases.
Principle of dressing after spring -- four standards of "covering in spring"
① Temperature: 15 ℃ is the critical temperature of spring cover. The study shows that 15 ℃ can be regarded as the critical temperature of cover and not cover for children, the elderly and other people who need "spring cover". That is to say, when the temperature lasts above 15 ℃ and is relatively stable, it can be left out.
② Temperature difference: if the temperature difference between day and night is greater than 8 ℃, it's a signal of spring temperature. The day before, it was still a warm spring breeze, with flowers blooming in spring. In a moment, there might be a cold current surging, "flowers blooming and being blown down by the wind", so that you can aftertaste the winter's killing. In the face of the ever-changing temperature of spring, parents should add and subtract clothes for their children as the weather changes. When to add clothes? Now, it is considered that the temperature difference between day and night is greater than 8 ℃ as the signal to cover.
③ Timing: 24-48 hours before the arrival of cold air, medical meteorologists found that the peak of many diseases is closely related to the time of cold air going south and cooling duration. The most obvious is the cold, dyspepsia, before the arrival of cold air convenient foot first. Therefore, the best time to cover should be 24-48 hours before the arrival of the cold air forecast by the meteorological station, and if it is late, it will be like an umbrella.
④ Duration: clothes properly covered for 7-14 days will decrease with the temperature rising. But the clothes should not be cut too fast, or there will be no 'cover' in place. How to calculate in place? Medical experts found that: the temperature back to cold needs to add clothing to keep out the cold. Even if the temperature rises after that, it will have to cover for another 7 days or so, so weak children and the elderly can adapt. If they cut their clothes too fast, they may get sick.