Science | High temperature and health

No.1

What is high temperature?

In terms of meteorology, the highest temperature of the day is high or more than 35 ° C. The process of high temperature weather for 3 consecutive days or more is called high -temperature heat waves.

(Produced by Hebei Weather)

"Barbecue": The high temperature of the air humidity is called dry thermal high temperature, and it is also vividly called "barbecue day". High temperatures appearing in Hebei Province in May to June are generally dry and hot-type high temperatures. This high temperature weather is prone to extreme high temperature (such as close or more than 40 ° C).

"Sauna": High temperature weather with high air humidity is called savory and high temperature. Due to the high humidity of this type, people feel sullen, just like in a steamer, and it is vividly called "sauna". In July and August, Hebei Province is mostly high -heat -hot -type high temperature.

No.2

It is prone to high -temperature weather conditions

01

Weather conditions

In the summer, the northern hemisphere has a long sunshine, and the heat of the sun has increased, and the temperature rises. When the following three conditions appear in summer, high temperature weather is prone to appear:

(1) No cold air activities for several consecutive days;

(2) Low altitude (about 1500 meters high) with warm tongue or warm ridge -areas with relatively high temperature;

(3) The weather is fine, cloudless or cloudy, sunlight to the ground, and solar radiation is enhanced.

02

Hebei high temperature climate characteristics

Data source: Hebei Province Climate Center,

Expert support: Shao Lifang

According to the climate data analysis from 1991 to 2020, Hebei Province has more than north and north, and the average annual high temperature days of Zhangjiakou, Chengde, Tangshan, and Qinhuangdao are less than 5 days. Other cities are more than 10 days. Some areas of Hengshui are more than 15 days.

No.3

What diseases are easy to cause high temperature?

01

Direct disease

The diseases directly caused by high temperature include heat stroke and psychiatric neurological disorders.

In the high temperature environment, the heat in the body cannot maintain the body temperature regulating dysfunction during the heat balance. Especially the high -temperature and humid "sauna days", greater humidity can hinder sweating and difficulty in heat dissipation, which leads to heat accumulation in the body. It cannot be adjusted by itself and thus heat stroke. People who are prone to heat stroke, including outdoor workers, infants, elderly people, patients with hyperthyroidism, pregnant women, etc.

Psychiatric neurological disorders are also called heat fatigue. It is a adverse effect on high temperature weather on emotions, work ability, and technical effectiveness, causing emotional "heat stroke".

02

Diseases that are easily induced by high temperature

High temperature will cause accelerated metabolism of the human body, subcutaneous vascular dilation, accelerated blood circulation, and cardiovascular system in high load operation. It is easy to induce heart disease and cause hypertension and coronary heart disease.

At the same time, a large amount of sweat can increase blood viscosity, cause blood thrombosis, and increase the risk of diseased diseases.

High temperature and high humidity weather will promote the reproduction and growth of bacteria, and food is easy to rot. If you don't pay attention to your diet, you can easily cause diarrhea.

Studies have shown that: high temperature, heat waves, and sweltering weather can lead to an increase in risk of cardiovascular and cerebrovascular diseases. Compared with normal weather, the increased risk is 8.6%, 25.2%, and 10.0%, respectively.

NO.4 High -temperature weather defense guide

01

Pay attention to the weather forecast and high temperature early warning signal released by the Meteorological Department in a timely manner, and make preparations for defense in advance. High -temperature orange warning signal: It means that the highest temperature will rise to above 37 ° C within 24 hours. High -temperature red warning signal: refers to the maximum temperature in 24 hours to rise above 40 ° C.

02

In the event of high temperature, please pay attention to the following:

① Avoid overwork and ensure sufficient rest and sleep.

② Avoid exposure to sunlight. When you go out during the day, you can take an umbrella or wear a hat.

③ Eat more potassium -containing foods, such as soybean products, potatoes, watermelons, bananas, etc.

④ Drink plenty of boiled water, or drink some fresh salt water to supplement the salt in the body.

⑤ Minimize outdoor activities around noon. When you go out, you can carry Huoxiang Zhengqi water, ten drops of water, cool oil, etc. with you.

(Some pictures are from the Internet)

references:

Analysis of the actual contrast of the temperature and open -air temperature in the louver box

Hebei Province Meteorological Disaster Defense Science Popularization Reading

The impact of Shijiazhuang high temperature heat waves and sweltering weather on the number of deaths of cardiovascular and cerebrovascular diseases

Draft: Jia Junmei

Review: Fu Guiqin

Beautiful editor: Han Lixiao, Lu Dan

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