Many people think that Africans have dark skin and are more heat-resistant than China, but this is not the case. Recently, a female student from Africa fainted on the side of the road because of heat stroke in Ningbo, and her head was knocked out of a bag. It is true that the temperature in many areas has been rising recently, and many people suffering from heatstroke are being treated in hospitals. So how can we prevent heatstroke in such a hot day?

1, African female students suffer from heatstroke

On July 22nd 14, a female student from Africa fainted from heatstroke in the downstairs of unnc dormitory, and was taken to the school hospital after being rescued by passers-by. There is no big problem at present.

"At that time, she just came out of the air-conditioned dormitory and went to the canteen to buy food hungry. At that time, it was the hottest time outside, and the temperature difference was too great. She fainted due to heatstroke. " On the 25 th, a person from the propaganda department of unnc told reporters.

At the time of the incident, Chen Yongchun, who opened a shop on campus, happened to pass by. "I saw her fall to the ground, her head was smashed out of a bag, and there was no response. I picked her up and patted her on the back while pinching people. " Chen Yongchun said that the aunt who stayed aside brought cold water and towels to clean the dirt on her face and body.

A few minutes later, the girl was conscious and struggled to thank Chen Yongchun and others. After sending the girl to the infirmary, Chen Yongchun and others didn't leave until she could communicate with the doctor normally.

It is understood that the highest temperature in downtown Ningbo reached 39.2℃ on the 22nd.

"This student is from Africa, but African students are not necessarily more heat-resistant than us. Heatstroke is a normal physiological reaction. " People from the school propaganda department told the newspaper that "Africa is very hot" is actually a misunderstanding. "The average and maximum temperatures in a large part of Africa are lower than those in Ningbo, and parts of North Africa are hotter."

2. How can we prevent heatstroke?

1, use heatstroke prevention and cooling tools.

Using air conditioners, fans, sleeping mats, sun hats and water are good tools for heatstroke prevention and cooling, so it is necessary to ensure that these sunscreen products can be used normally when summer comes.

2. Replenish water in time

Drink more warm water in summer, or light salt water, honey water and tea are all good choices. But drink less drinks, especially cola, sprite and soda, which contain a lot of saccharin and electrolyte, and are not suitable for drinking more. Drinking more can not only relieve summer heat, but also affect appetite.

Step 3 wear the right clothes

You sweat a lot in summer, so you should pay attention to choosing clothes with good sweat absorption effect, and never choose chemical fiber clothes, because chemical fiber clothes absorb sweat the worst. At the same time, don't choose dark clothes, because black clothes easily absorb the wavelength of the sun and make you hotter. On the contrary, some light-colored clothes are a good choice. Some studies say that wearing red clothes in summer is the best protection against heat, so you can try more. Summer clothes should be thin, but not too short, because the skin has no self-cooling function, so wearing too short may make you hotter.

Step 4 refuse alcohol

Because of the influence of alcohol, the body is prone to excessive dampness and heat, causing some infections. If you drink alcohol at this time, it will aggravate the feeling of damp heat and make the whole person more uncomfortable.

5. Choose the right time to go out

It should be said that the summer sun is very poisonous from 8 am to night 16, so try to avoid going out at this time. If it is necessary to go out, try to pass by some shade trees, try to avoid direct contact with the sun, and do a good job of sun protection.

6. Cool oil is often prepared at home.

The temperature is high in summer, and if you are not careful, you will have heatstroke. Therefore, you should always prepare some first-aid supplies such as cool oil and ordinary soda at home, and at the same time master the scientific common sense of asking for help to minimize the harm of summer heat.

7, pay more attention to light diet

So, don't eat some spicy food, and don't eat too salty. At the same time, you can drink more mung bean soup and herbal tea, such as jasmine tea, Sydney, watermelon, bitter gourd, wax gourd, lotus root, yam, radish and other foods with heat-clearing and detoxification effects. Of course, in order to ensure normal metabolism, we should also eat lean meat, fish and other foods with rich nutrition but low calorie content.

8. Don't bring metal ornaments.

Because summer itself is easy to sweat, and metal packaging can easily cause contact dermatitis if it is stained with sweat.

9. Pay more attention to rest

Therefore, we should form the habit of going to bed early and getting up early, and pay attention to preventing excessive fatigue. You can take a nap at noon, but the nap time should not be too long, and it is advisable to keep it for about half an hour. Sleeping too long will affect the central nervous system and slow down a person's metabolism, which is not conducive to health.

3. What are the symptoms after heatstroke?

1, symptoms of threatened heatstroke

The body temperature is normal or slightly increased (37.5℃), which is characterized by dizziness, dizziness, tinnitus, nausea, vomiting, chest tightness, palpitation, thirst, sweating and inattention. If it is moved to a cool and ventilated place in time and supplemented with water and salt, it can be recovered in a short time.

2, mild heatstroke symptoms

The body temperature is often above 38 degrees. In addition to dizziness and thirst, there are often manifestations such as flushing, sweating and burning skin, or cold limbs, pale face, decreased blood pressure and accelerated pulse. If handled in time, it can often be recovered within a few hours.

3. Symptoms of severe heatstroke

As the name implies, it is the most serious type of heatstroke, and it will be life-threatening if it is not treated in time. This kind of heatstroke can be divided into four types: heat spasm, heat exhaustion, heatstroke and heatstroke.

Symptoms and characteristics of heatstroke: this kind of heatstroke mostly occurs in the elderly and people who can't adapt to the high temperature for a while. The main symptoms are dizziness, headache, palpitation, thirst, nausea, vomiting, cold skin, decreased blood pressure, syncope or confusion. At this time, the body temperature is normal or slightly higher.

Symptoms and characteristics of heatstroke: The cause of this kind of heatstroke is just like its name, because under the direct irradiation of the scorching sun, strong sunlight penetrates the skin and skull of the head and causes brain cell damage, which in turn causes brain tissue congestion and edema; Because the main injury is the head, the initial discomfort is severe headache, nausea and vomiting, irritability, and then coma and convulsions may occur.

Symptoms and characteristics of heatstroke: Some people have been engaged in manual labor in a high temperature environment for a long time, and the body produces too much heat, but the heat dissipation is insufficient, resulting in a sharp rise in body temperature. At the beginning of the onset, a lot of cold sweat broke out, followed by no sweat, shallow breathing, rapid pulse, restlessness, confusion and decreased blood pressure, which gradually developed into coma with limb convulsions; Severe cases can produce brain edema, pulmonary edema, heart failure and so on.