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Why is the dog days the hottest in a year? How to have a good three dog days in summer?

Three dog days is the hottest time of the year. When the summer heat comes down, many people like to stay in the air-conditioned room. So you know why it's so hot? How to live a good three dog days in summer? What are the health care precautions for three dog days?

Why is it the hottest in the dog days?

After falling into the ground, the surface humidity becomes larger, more heat is absorbed every day, less heat is emitted, and the heat of the surface layer accumulates, so it is hotter day by day. Entering the three volts, the accumulated heat of the ground area reaches the peak, and the weather is the hottest.

In addition, there is more rain in summer, and the air humidity is large. The heat capacity of water is much larger than that of dry air, which is also an important reason for the sultry weather. In July and August, the subtropical high was strengthened. Under the control of the subtropical high, the downdraft inside the high pressure made the weather clear and cloudless, which was conducive to the sunshine, the ground radiation increased temperature, and the weather was even hotter.

How to live a good dog days?

There's a problem after ambush that most people confuse: 'do we have to focus on heatstroke prevention in the dog days?' in fact, we still need cold prevention!

From the beginning of the dog days, the body Yang gradually reaches the peak in a year, the blood vessels are in the state of expansion, and the Qi is released. Once it catches cold, the cold pathogen is easy to invade. People like to eat cold drinks and air conditioning in summer. These excessive cool behaviors may cause the body to be harmed by cold evils.

Many diseases are caused by the damage of Yang Qi caused by cold eating, or the invasion of exogenous pathogens caused by excessive cold. Don't look down on the cold evil in summer. At this time, cold prevention is even more important than heatstroke prevention.

You haven't heard of 'treatment of winter sickness in summer'? Or 'is winter sickness accumulated in summer?' this may be because you often do the following things in the dog days and cause cold air to enter the body: take a cold bath, walk in cold water, blow air conditioner, etc., often eat cold food, such as cold drink, iced fruit, etc.

How serious are the consequences? In one case, a woman in her 30s had to eat five popsicles a day in summer and blow the air conditioner and fan every day. Two years later, she got scleroderma, her skin became hard and black, and her internal organs were damaged. This is the severe consequence of cold pathogen entering from the outside. It can be seen how terrible it is in case of cold air.

Why do you fall ill after a bad three volts?

In fact, many of the "root causes" are falling in three rainy days. As the saying goes, "go into the heat, steam up and cook down!" and when you fall in, the "sauna day" with high temperature, high heat and high humidity will appear frequently. The heat wave will hit people, and the heat will be unbearable. All kinds of health problems will follow, such as heatstroke, cardiovascular disease, heart failure, etc.

It's very hot, plus our body perspires a lot and consumes a lot. It's easy to get tired and digestive function is decreased. If you don't adjust your diet and eat the wrong food, it is easy to reduce your immunity and cause diseases.

What is a dog day?

The three dog days appear in the summer heat and the beginning of autumn, which is the day with the highest temperature, humid and sultry in the year. The so-called "dog days" refers to the "three dog days" of the lunar calendar, which is the hottest period of the year. It can be understood that "Fu" means that the weather is too hot to move. But the reason why it is called "Fu" is that there are many cold factors. Sanfu is the hottest 30 or 40 days of the year in Central China. Sanfu is calculated according to the lunar calendar, which is between the late July and the early August of the lunar calendar. The three dog days start from the third day after the summer solstice, which is called the first dog day (10 days); the fourth day of the summer solstice is called the middle dog day (10 days, there are 20 days), the first day after the beginning of autumn is the last dog day (10 days), and then the seasonal changes begin to enter autumn.

In classical Chinese, Fu means latent. "Fu" of "three dog days" means "Fu Xie". That is, the so-called "six evils" (referring to "wind, cold, heat, humidity, dryness, fire"). In summer, the summer evil will gradually lie deep in the body, but not known. For example, in autumn, fire evils can kill gold, which will hurt lung qi, lead to the decline of human immunity, and suffer from colds, coughs, fever and other diseases. After entering the winter, these diseases will recur. In autumn, there are few recipients and severe diseases in the winter solstice. '

Therefore, the Yellow Emperor's Internal Classic clearly points out that we should "let off our anger if we love outside". Don't hide in an air-conditioned room for fear of sweating. Cold drinks not only can't eliminate the heat, but also hurt the spleen and stomach. You should know that tea is the best drink to relieve summer heat. Although a cup of hot tea will sweat, it will bring with it a shower of coolness. You can't just look at things in front of you, but look far away. Health preservation must start from the present.