Life Tips

Cicadas intertwined all day.

The heat wave is rising from the hot asphalt road.

torrid summer

Has come to us.

In the hot summer

everywhere

There is an aggressive heat wave.

Under the scorching sun

How to cool down is everyone's problem.

The most urgent problem to understand

So what can be done to make the water in the body evaporate less?

Rejuvenation

Now I want to talk to you about popular science.

Misunderstanding of gluttony in summer ~

A misunderstanding of greed and ruthlessness

1. Drink cold drinks when it is hot.

Drinking ice water in summer is the best way to quench your thirst? Not exactly.

Although drinking cold water can temporarily lower the body temperature, the body will instinctively speed up blood circulation and maintain the normal temperature in the body. Finally, the more cold water you drink, the higher your body temperature, but the more thirsty you feel. On the contrary, drinking warm water can raise body temperature, promote perspiration and better quench thirst.

In addition, if you drink too many cold drinks, the nerve groups in the nerve center at the back of the maxilla will be overstimulated, leading to cerebral artery spasm. At this time, people will feel severe pain in the middle of their foreheads or near their temples, and in severe cases, they may feel nausea and vomiting.

2. Sweat all over and take a shower

During exercise, the blood flow to the muscles increases and the heart rate increases. When exercise stops, blood flow and heart rate will slow down, but it will last for a long time. If you take a bath immediately, it will increase the blood flow to your skin and muscles. In this way, the remaining blood is not enough to supply other important organs, such as the heart and brain, thus inducing heart disease.

After exercise, the pores expand and sweat a lot, so you can't take a bath immediately. Bathing will increase the expansion of pores, make the body chills and tremble, and the blood circulation will be disordered, leading to the decline of physical function.

Pour cold water on the body

Sudden cold stimulation will not only cause vasoconstriction, but also increase blood pressure, and sometimes even lead to severe coronary spasm, plaque rupture and thrombosis, resulting in acute myocardial infarction, which is life-threatening. This situation is most likely to happen to patients with cardiovascular and cerebrovascular diseases.

If you like to take a cold bath in summer, it's best to have a step-by-step process to let your body gradually adapt to the cold and hot changes.

Finish these misunderstandings.

Let me talk about some common sense of heatstroke prevention in summer.

(1) Drink water in time: The first thing for heatstroke prevention in summer is to pay attention to drinking water in time. In hot summer, always keep enough water in your body until you feel thirsty.

(2) Don't do strenuous exercise: Although summer exercise is good for us, we should pay attention to moderate exercise, not too strenuous exercise, especially after strenuous exercise.

(3) Maintain adequate sleep at night: Adequate sleep is a necessary condition for maintaining a good mental state, and maintaining a regular schedule is of great benefit to our study and life.

(4) Seek medical attention in time when heatstroke symptoms appear: When heatstroke symptoms such as headache, dizziness, thirst, hyperhidrosis, weakness and soreness of limbs, inattention, uncoordinated movements, normal body temperature or slight increase occur, more attention should be paid to preventing heatstroke. If you have found the symptoms of heatstroke, you must go to the hospital in time without delay.

Summer is the easiest time to get sunburned.

The biggest reason is ultraviolet light.

It is hot and sunny in summer.

Therefore, the ultraviolet intensity is relatively high in summer.

If we are exposed to the sun for a long time,

Will absorb more ultraviolet rays.

The summer sun is not the most terrible.

The most terrible thing is the strong ultraviolet rays produced by the sun.

I'll popularize science here first.

How much harm does ultraviolet light do to us?

1. Ultraviolet rays will accelerate the aging of our skin and make our skin rough and dull.

2. Long-term ultraviolet irradiation is easy to cause light-induced dermatosis, which will damage our health.

3. Ultraviolet rays also do some harm to eyes, so when we are outdoors in summer, we should not only protect our skin from the sun, because our eyes are more fragile than our skin and need more safety protection.

1

What are the sun protection methods commonly used in summer

Wear sunscreen before going out and take an umbrella.

It is best to apply sunscreen about 20 minutes before going out.

Sunscreen can play a better role when you go out.

We'd better wear sunglasses when going out.

Because the ultraviolet light on the ground can be reflected to us.

The reflected ultraviolet rays will harm our eyes.

No.2 catering

We can eat some fruits with high vitamin C content.

Like tomatoes, strawberries, kiwis and so on.

These foods can effectively prevent ultraviolet radiation.

Inhibit the production of melanin

Here is a special explanation for tomatoes.

Studies by German and Dutch scientists show that

Eating more tomatoes can protect you from the sun.

If you eat 40 grams of tomatoes every day,

Then our risk of sunburn will be reduced by 40%

therefore

Eat tomatoes properly in summer.

Can play a positive role in sun protection.

The third dress

As far as summer clothes are concerned.

An ordinary T-shirt is better than any sunscreen.

It can isolate 95% ultraviolet rays.

As far as the color of clothes is concerned.

Red clothes are the most sun-proof.

Yellow clothes have the worst sunscreen effect.

Dark clothes also have a good sunscreen effect.

Dark clothes can absorb all ultraviolet rays into clothes.

This can effectively isolate ultraviolet rays.

It shines on our skin.

However, wearing dark clothes in summer may be hot.

It's very hot today

Can you take off your mask?

Because of the hot weather, some people will take off their masks when they go out to play. On the one hand, the mask is uncomfortable, on the other hand, it will be considered that the epidemic has been effectively controlled and there is no need to wear it all the time.

When exactly?

May I take off my mask and go out?

commemorate

In these three cases, you must wear a mask.

1

Must be worn in confined spaces, such as subways and trains;

2

It needs to be worn in crowded areas, office areas, hospitals, schools and other places;

three

Close contact, those who need to be in close contact with people for a long time need to wear masks;

At present, most areas in China are low-risk areas.

But it doesn't mean there is no risk.

therefore

At present, the public still needs to do personal prevention and control.

Do a good job in external defense investment

Inside defensive rebound

that's me

Several summer heatstroke prevention tips summarized for everyone.

I hope this summer

We can all go out to play happily.

Today's topic: What other heatstroke prevention tips do you know?

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