Health knowledge and self-protection in summer

1, the hotter the weather, the less clothes you need to wear. Research shows that bare skin can increase skin radiation and dissipate heat only when the skin temperature is higher than the ambient temperature. In hot summer, the temperature is generally close to or higher than 37℃, so the skin can not dissipate heat, but can only absorb heat from the external environment, so bare skin will feel hotter.

The earlier you do morning exercises in summer, the better. Research shows that air pollutants in summer are the most difficult to diffuse before 6 am, which is often the peak of pollution. Therefore, the time for morning exercise in summer should not be earlier than 6 o'clock.

3, air conditioning should be kept at a constant temperature or quasi constant temperature. Medical meteorologists have found through experiments that constantly adjusting the room temperature can make people gradually adapt to the sharp changes in temperature, improve their self-protection ability, and prevent them from catching colds or suffering from other room diseases. The room temperature must be raised or lowered smoothly (1℃ to 2℃ is appropriate for each adjustment).

The darker the color of sunglasses, the better it can protect your eyes. If the color of the lens is too dark, it will seriously affect the visibility, and the eyes will be easily damaged due to the difficulty in seeing, and the eyes cannot be protected. Gray and green are the best choices for sunglasses.

Shower in summer is the most comfortable summer. People will absorb a lot of heat when they go out for activities, and the pores of human skin are in an "open" state. Immediately "shower" will make the pores of the whole body close quickly, so that heat can not be distributed and stay in the body, which is easy to cause high fever; At the same time, when taking a bath, due to the rapid contraction of brain capillaries, it is easy to cause insufficient blood supply, which makes people dizzy and even causes shock. Therefore, when you go home in summer, let yourself sweat first, and then do some cooling measures after the heat on your body is released.

In hot summer, people have the habit of taking a nap. Because the days are long, the nights are short and the weather is hot in summer, people often go to bed very late. It was dawn at four or five in the morning, and they woke up early.

In terms of sleep time, it is not enough to rely solely on the night. Taking a nap 1-2 hours is of course necessary. In summer, the temperature is high, the metabolism of human body is vigorous, energy consumption is high, and people are prone to fatigue, especially the brain is more prone to fatigue, so they feel groggy after lunch and can't get up.

At this time, have a good sleep, let the brain and all systems of the whole body have a good rest, replenish the energy consumed in the morning, and prepare new energy for afternoon activities, so as to maintain abundant energy to complete the study and work in the afternoon. Noon is the hottest time of the day, and fatigue is the cause of heatstroke. Therefore, people who work and work in other places can take a good nap to prevent heatstroke.

1, the time for sleeping and taking a nap in summer should not be too long, preferably within one hour. Here is a reminder, don't rush in because of the short nap time, but also pay attention to sleep hygiene.

First of all, don't lie down immediately when eating, don't sleep in a place where there is a stream passing by during a nap, and don't sleep on the table. It is best to take off your coat and cover your abdomen with a towel during a nap to avoid catching cold in your stomach and abdomen. What you need to pay attention to when sleeping in summer is: don't let the electric fan blow directly when sleeping; Sleeping at night is not suitable for sleeping outside.

Don't enjoy the cool too late before going to bed, and don't enjoy the cool for a long time in the water pavilion, under the shade, in the aisle or on the balcony. 2. Summer clothes should be light and soft. The better the permeability and heat absorption of the material, the more effectively it can help the human body to dissipate heat and make people comfortable and cool to wear.

Different fabrics have different moisture absorption properties. It is determined that when the air temperature is 24℃ and the relative humidity is 50%~70%, the moisture absorption rate of rayon fiber is 10%~ 14%, that of mulberry silk fabric is 8%~ 1 1%, and that of flax is 8.3% ~ 60%. Synthetic fibers have the worst moisture absorption rate, with polyester less than 1% and vinylon only 3%, so it is best to choose rayon, silk, linen and cotton knitwear for summer clothing.

Short shirts, short skirts and shorts are more suitable for summer wear. Jeans and tights are not suitable for summer.

Wear light-colored clothes in summer to reflect radiant heat. 3, wearing a hat in the strong sunshine in summer, at least wear a hat, so that the damage of ultraviolet rays to the eyes can be reduced by half.

So, what kind of hat has the best protective performance? Straw hat and white cloth hat have the best protective performance, and the shielding resistance to solar radiation heat is 48.4% and 50. 1% respectively. For women, we should also pay attention to the beauty of hats. There are the following cool hats to choose from: sun hat: it can not only shade the sun, but also increase the aesthetic feeling, and can adjust the tightness by itself, which is more suitable for girls or middle-aged women; Tourist hat: made of nylon perforated yarn, with a large shading surface on the forehead.

Light-colored hats such as light blue, light yellow and milky white are suitable for women. Folding hat: monochrome wide edge, can be folded into handkerchief size, and the color is white, white Kobanawa light blue; Top hat: flat top, round edge and moderate brim, giving young women a unique feeling; Dome: It is best for people with whiter skin to wear dark dome; People with dark skin should wear light domes.

Of course, to prevent sun exposure and protect your eyes, you can not only rely on hats, but also wear color-changing glasses or sunglasses, so that the damage caused by excessive ultraviolet radiation can be reduced by more than 90%. In short, please don't forget to wear a straw hat and sunglasses when you are active in the sun.

4. The beauty of summer. First of all, we should choose good cosmetics: because of the hot summer climate, people are prone to sweat, so it is more appropriate to choose the following cosmetics: sunscreen: commonly used sunscreen agents include cream, cream, honey, grease, etc., which can reduce the damage of ultraviolet rays to the skin.

Toilet water: it has a certain bactericidal effect. It can not only remove sweat, sterilize and relieve itching, but also refresh the mind.

Talcum powder and prickly heat powder: have the functions of cooling skin, absorbing sweat and relieving itching. But it should be used on clean and dry skin.

Perfume: it gives people fragrance and beauty, and can be used all year round. The main parts used are clothes, handkerchiefs and hair.

Secondly, we should skillfully use eye makeup: people with non-white skin color can skillfully use eye makeup to improve their brightness, and choose eye shadow with the same pigment as skin color, such as brown and orange, with pink and orange lipsticks selected in the same way. Because these colors are close to skin color, they are quite natural. If the skin is white, the eye shadow can be light blue, purple and so on. Which will be brighter. If the eyeliner is gray, it will be cooler and more pleasant.

In addition, don't forget the benefits of fruits and vegetables. The main method is to cut the leftover watermelon into pieces, apply it directly to the face and rub it repeatedly for five minutes. Then, wash it with clear water and apply some cosmetics. Twice a week can keep the skin.

2. A composition about life and science, including health, health knowledge and self-protection.

Popularize scientific knowledge of disease prevention and develop good living habits.

In early winter, the temperature drops and the sky is dry. This is a high incidence period of epidemics and various infectious diseases. In order to improve the health and epidemic prevention awareness of all students, Suohe Experimental Primary School held a lecture on winter health and epidemic prevention knowledge in each class on February 12.

In the lecture Dulou, the class teachers of each class gave a detailed explanation on the symptoms, causes and preventive measures of common infectious diseases such as influenza and respiratory tract in winter. Students speak according to their own situation, and the teacher guides them in time, suggesting that students develop good hygiene habits, ensure sleep, open windows for ventilation, pay attention to the wisdom of diet and nutrition, and avoid diseases from entering the mouth; Call on everyone to strengthen physical exercise, get more sunshine, enhance physical fitness and reduce various inducing factors of infectious diseases in winter. Finally, the class teacher also found some catchy jingles from the internet to study with everyone. The students quickly remembered these points of Tao and benefited a lot.

At the same time, the school has strengthened the ventilation, disinfection and cleaning of classrooms, dormitories, toilets and other places where students study and live, and eliminated the conditions where infectious diseases may occur. On the basis of routine sanitary cleaning, all kinds of educational, teaching and living facilities in the school will be cleaned intensively and thoroughly to eliminate all hidden dangers of infectious diseases.

Through this lecture on health knowledge in each class, students have a comprehensive understanding of winter health prevention and enhanced the self-care ability of teachers and students to resist diseases.

3. Health habits and disease prevention knowledge that should be paid attention to when summer comes.

Are you a student? This is about students.

I. Personal hygiene:

Requirements:

(1) Uniforms and inner and outer coats shall be neat;

(2) Do five noes: do not leave (dye) nails, do not dye (perm) hair, do not wear makeup, do not wear accessories, and boys do not leave long hair;

(3) Do four things: wash your hands frequently (wash your hands with running water before and after meals), take a bath frequently, cut your nails frequently, and change clothes frequently.

The life committee of each class is responsible for assisting the class teacher to supervise the students' daily personal hygiene according to the above requirements, and correcting the problems in time when found.

The school's political and educational office, student union and clinic jointly check the personal hygiene of students in each class every week, and make inspection records.

Two. Classroom hygiene:

Scope: classroom interior and exterior walls (roofs), floors, doors and windows (curtains), tables and chairs, blackboards, lamps, triangular tables and indoor facilities.

Standard: Check and evaluate according to the content of "School Hygiene Inspection and Evaluation Standard".

Requirements: ① The classroom should be ventilated every day (at least three times a day in winter) to keep the classroom air fresh; (2) The students on duty shall clean up every day (not less than three times).

Three. Environmental sanitation (public places):

Division of responsibilities:

(1) Bai is responsible for the sanitation of corridors, stairs and toilets on the first, second, third and fourth floors;

(2) The General Affairs Office and Class (2) and (3) of Senior Three are responsible for the pronunciation classroom;

(3) The oral classroom is responsible for classes (2), (4), (5) and (6) of Senior One respectively;

(4) Li Ting is in charge of the library;

5] Zhao Na is responsible for computer classrooms, multimedia classrooms and teachers' rooms;

[6] Lv Zhen is responsible for the music classroom;

Xin Li used to be in charge of the physics laboratory;

Liu Pengfei is in charge of the chemical laboratory;

(9) Senior 1 and Senior 2 students are responsible for making up lessons for foreign students;

⑽ The laundry room is the responsibility of senior three students;

⑾ Yang Ling is responsible for the dormitory and bathroom;

⑿ The campus cleaning area is the responsibility of each class according to the scope of division of labor;

[13] The staff living in the teachers' dormitory are responsible for it;

[14] The office is in the charge of the staff in this room;

⒂ Jin Lianyu is responsible for the dormitory for international students.

Requirements:

The person in charge should do the following work within the above scope:

(1) Keep the area of responsibility clean and tidy, and the floor, wall and blackboard are free of stains, phlegm, scraps of paper and wastes;

The window is bright and clean, and the window is often ventilated;

(3) Wash the sink, urinal and sewage pool every day and disinfect them every week;

(4) classrooms, libraries, computer rooms, offices, etc. Should be kept clean, cleaned at noon every week, and disinfected according to the use;

5] Take turns to be on duty every day in the dormitory, keep indoor beds and underground articles tidy, free of dust and stains, and change sheets, quilts, pillow towels, etc. frequently. , often dry bedding, and often disinfect its environment.

Four. Canteen hygiene:

Establish and improve the canteen hygiene management system (including hygiene, safety, post responsibility, etc.). ), making the system widely known.

Cooking personnel should hold valid health certificates and take up their posts after training. When the health certificate expires, it should be renewed in time.

Do a good job of personal hygiene, take a bath every week, change clothes and cut your nails.

Wash your hands and disinfect before entering the operating room, wear overalls and work caps.

Food containers, refrigerators, chopping boards and knives should be cooked separately and marked.

The school implements a separate meal system. After each meal, tableware should be disinfected and cleaned, as well as chopping boards, cookers and food containers.

Rotten food should be treated in time, and must not be eaten again to avoid food poisoning.

To purchase good food, the place and place for purchasing vegetables, meat (poultry), grain and other foods should be relatively fixed, and there should be permits for future reference.

Drugs and instruments for killing cockroaches, mice, mosquitoes and flies are available and can be eliminated at any time.

The hygiene of operating room, finished product room, dining room and canteen should be small every day and large every week, and the environment should be disinfected regularly.

4. Summer health knowledge

First, the common misunderstandings of health care in summer 1. The hotter the weather, the less clothes you should wear. Research shows that only when the skin temperature is higher than the ambient temperature can bare skin increase skin radiation and dissipate heat. In hot summer, the temperature is generally close to or over 37℃, so the skin can't dissipate heat, and it can only absorb heat from the external environment, so it will feel hotter if you play shirtless.

The earlier you do morning exercises in summer, the better. Research shows that air pollutants in summer are the most difficult to diffuse before 6 am, which is often the peak of pollution. Therefore, the time for morning exercise in summer should not be earlier than 6 o'clock.

3, air conditioning should be kept at a constant temperature or quasi constant temperature. Medical meteorologists have found through experiments that constantly adjusting the room temperature can make people gradually adapt to the sharp changes in temperature, improve their self-protection ability, and prevent them from catching colds or suffering from other room diseases. The room temperature must be raised or lowered smoothly (1℃ to 2℃ is appropriate for each adjustment).

The darker the color of sunglasses, the better it can protect your eyes. If the color of the lens is too dark, it will seriously affect the visibility, and the eyes will be easily damaged due to the difficulty in seeing, and the eyes cannot be protected. Gray and green are the best choices for sunglasses.

Shower in summer is the most comfortable summer. People will absorb a lot of heat when they go out for activities, and the pores of human skin are in an "open" state. Immediately "shower" will make the pores of the whole body close quickly, so that heat can not be distributed and stay in the body, which is easy to cause high fever; At the same time, when taking a bath, due to the rapid contraction of brain capillaries, it is easy to cause insufficient blood supply, which makes people dizzy and even causes shock. Therefore, when you go home in summer, let yourself sweat first, and then do some cooling measures after the heat on your body is released.

Second, take a nap in summer. In hot summer, people have the habit of taking a nap. Because the days are long, the nights are short and the weather is hot in summer, people often go to bed very late. It was dawn at four or five in the morning, and they woke up early.

In terms of sleep time, it is not enough to rely solely on the night. Taking a nap 1-2 hours is of course necessary. In summer, the temperature is high, the metabolism of human body is vigorous, energy consumption is high, and people are prone to fatigue, especially the brain is more prone to fatigue, so they feel groggy after lunch and can't get up.

At this time, have a good sleep, let the brain and all systems of the whole body have a good rest, replenish the energy consumed in the morning, and prepare new energy for afternoon activities, so as to maintain abundant energy to complete the study and work in the afternoon. Noon is the hottest time of the day, and fatigue is the cause of heatstroke. Therefore, people who work and work in other places can take a good nap to prevent heatstroke.

Third, summer life health care 1, summer sleep nap time should not be too long, preferably within one hour. Here is a reminder, don't rush in because of the short nap time, but also pay attention to sleep hygiene.

First of all, don't lie down immediately when eating, don't sleep in a place where there is a stream passing by during a nap, and don't sleep on the table. It is best to take off your coat and cover your abdomen with a towel during a nap to avoid catching cold in your stomach and abdomen. What you need to pay attention to when sleeping in summer is: don't let the electric fan blow directly when sleeping; Sleeping at night is not suitable for sleeping outside.

Don't enjoy the cool too late before going to bed, and don't enjoy the cool for a long time in the water pavilion, under the shade, in the aisle or on the balcony. 2. Summer clothes should be light and soft. The better the permeability and heat absorption of the material, the more effectively it can help the human body to dissipate heat and make people comfortable and cool to wear.

Different fabrics have different moisture absorption properties. It is determined that when the air temperature is 24℃ and the relative humidity is 50%~70%, the moisture absorption rate of rayon fiber is 10%~ 14%, that of mulberry silk fabric is 8%~ 1 1%, and that of flax is 8.3% ~ 60%. Synthetic fibers have the worst moisture absorption rate, with polyester less than 1% and vinylon only 3%, so it is best to choose rayon, silk, linen and cotton knitwear for summer clothing.

Short shirts, short skirts and shorts are more suitable for summer wear. Jeans and tights are not suitable for summer.

Wear light-colored clothes in summer to reflect radiant heat. 3, wearing a hat in the strong sunshine in summer, at least wear a hat, so that the damage of ultraviolet rays to the eyes can be reduced by half.

So, what kind of hat has the best protective performance? Straw hat and white cloth hat have the best protective performance, and the shielding resistance to solar radiation heat is 48.4% and 50. 1% respectively. For women, we should also pay attention to the beauty of hats. There are the following cool hats to choose from: sun hat: it can not only shade the sun, but also increase the aesthetic feeling, and can adjust the tightness by itself, which is more suitable for girls or middle-aged women; Tourist hat: made of nylon perforated yarn, with a large shading surface on the forehead.

Light-colored hats such as light blue, light yellow and milky white are suitable for women. Folding hat: monochrome wide edge, can be folded into handkerchief size, and the color is white, white Kobanawa light blue; Top hat: flat top, round edge and moderate brim, giving young women a unique feeling; Dome: It is best for people with whiter skin to wear dark dome; People with dark skin should wear light domes.

Of course, to prevent sun exposure and protect your eyes, you can not only rely on hats, but also wear color-changing glasses or sunglasses, so that the damage caused by excessive ultraviolet radiation can be reduced by more than 90%. In short, please don't forget to wear a straw hat and sunglasses when you are active in the sun.

4. The beauty of summer. First of all, we should choose good cosmetics: because of the hot summer climate, people are prone to sweat, so it is more appropriate to choose the following cosmetics: sunscreen: commonly used sunscreen agents include cream, cream, honey, grease, etc., which can reduce the damage of ultraviolet rays to the skin.

Toilet water: it has a certain bactericidal effect. It can not only remove sweat, sterilize and relieve itching, but also refresh the mind.

Talcum powder and prickly heat powder: have the functions of cooling skin, absorbing sweat and relieving itching. But it should be used on clean and dry skin.

Perfume: it gives people fragrance and beauty, and can be used all year round. The main parts used are clothes, handkerchiefs and hair.

Secondly, we should skillfully use eye makeup: people with non-white skin color can skillfully use eye makeup to improve their brightness, and choose eye shadow with the same pigment as skin color, such as brown and orange, with pink and orange lipsticks selected in the same way. Because these colors are close to skin color, they are quite natural. If the skin is white, the eye shadow can be light blue, purple and so on. Which will be brighter. If the eyeliner is gray, it will be cooler and more pleasant.

In addition, don't forget the benefits of fruits and vegetables. The main way is: take leftovers.

5. How to protect yourself in summer?

Eat more of the following fruits in summer: ■ Peaches have high iron content.

There is a saying in Beijing that "peaches nourish people and apricots hurt people". From the point of view of nutritional immunology, this sentence

Science?

Dr. Chen Zhaofei, an expert in nutritional immunology, said that peaches are rich in vitamins, minerals and

Fruit acid has the highest iron content in fruits. Iron is the main raw material for human hematopoiesis, which is beneficial to health.

Quite beneficial. Peaches play an important role in many herbs.

Apricot contains citric acid, malic acid and beta carotene, which is mainly used for relieving cough and asthma, moistening intestines and relaxing bowels.

Relax. However, Compendium of Materia Medica records that "raw food hurts bones and muscles".

Watermelon can clear away heat and relieve summer heat and induce diuresis.

There is a folk proverb in our country: eat watermelon in summer, don't catch medicine. Explain that summer is the most suitable.

Eat watermelon.

Watermelon is rich in vitamins A, b 1, b2, C, glucose, sucrose, malic acid and glutamic acid.

And arginine. It has the effects of clearing away heat, relieving summer heat, inducing diuresis and lowering blood pressure, and is effective for high fever, thirst and summer heat.

Hyperhidrosis, nephritis, oliguria and hypertension have certain auxiliary effects.

Although watermelon is good, Chinese medicine experts believe that watermelon is a cold food, which is easy to hurt the spleen and stomach, so

Deficiency and cold of spleen and stomach, chronic enteritis, gastritis and duodenal ulcer, or loose stool.

Better eat less. Normal people should not eat too much, otherwise it will damage the spleen and stomach and cause indigestion.

Or diarrhea.

Need to be reminded that patients who have a cold and fever in summer often make up for it by eating watermelon.

Water can reduce fever, but because it belongs to sweet and cold food, it is not suitable for colds and first colds.

Especially those suffering from chills, no sweat and other symptoms should not eat.

Fruit basket is a treasure house of nutrition around you.

Dr. Chen Zhaofei said that the fruit basket is a treasure house of nutrition that you can get at your fingertips. She likes it.

Fruits include citrus, papaya, peach, pineapple, strawberry, grape, banana and apple. Zhao Chen

Dr. Fei also listed its nutritional functions one by one.

■ Limonene has anticancer effect.

Citrus fruits can moisten the lungs and regulate qi, and fresh orange juice contains a variety of creatine and vitamins, which is new to the human body.

Aging metabolism is helpful, has whitening effect and has many health care functions. The surface of orange pulp is white.

Colored silk collaterals, containing vitamin P, can prevent and treat hypertension and have expectorant effect. There is a famous essence

The oil called limonene essential oil is the most important part of most oranges.

It is pointed out that limonene has anticancer effect.

Papaya can treat protein's digestive disorders.

Papaya is not only a delicious fruit, but also has medical functions. Papaya contains a name

It is an important digestive enzyme of papain, which can decompose protein food into digestible food.

The country can dissolve up to 35 times its own lean meat, which is why people treat it with papaya.

Causes of digestive disorders in protein. It exists in the leaves of papaya trees and immature papaya skins.

The most contented.

■ Enzymes in pineapple can also decompose protein.

Every 100g pineapple fruit contains as much as 30mg of vitamin C and is rich in water.

Points. Its pulp, like papaya, contains an enzyme that can decompose protein, so it can

Soften meat and dissolve blood clots.

■ Strawberry juice can relieve sunburn pain.

Strawberry is rich in vitamins C, B, calcium, phosphorus and potassium, and it still occupies a place in plant medicine.

A place. Its leaves can be used as astringent after boiling, and can be used to treat diarrhea, fever,

Oral ulcer and gum disease.

■ Grape antioxidant

The antioxidant effect of grape seed is not only 20 times that of vitamin C, but also 50 times that of vitamin E.

Grape seed contains a lot of opc antioxidants, opc is a powerful flavonoid, which mainly exists in

In epidermis and seeds, the effective source of red grape seeds, especially opc, is to increase the internal resistance of the body.

The potential key of oxidative activity can protect immune oxidative damage and delay the aging process.

Bananas are antidepressants and help sleep.

Banana is one of the oldest fruits of human beings, with high nutritional value. It is naturally potassium.

Source, can inhibit sodium that causes hypertension and cardiovascular diseases, and maintain normal blood pressure and heart.

Function, but also rich in vitamin b6, so that people stay away from depression, magnesium, a stress-resistant mineral, is also necessary.

Silk amino acid-the source of tryptophan. It works with vitamin b6, nicotinic acid and magnesium.

It is the main raw material for human body to make serotonin, which has the functions of anti-depression, sedation and sleep.

■ Apples lower cholesterol and prevent gallstones.

Apple not only contains protein, fat, carbohydrates, vitamins and minerals,

Malic acid and so on. And valuable pectin components. Pectin is a soluble cellulose that can

Promote gastrointestinal peristalsis, regulate the stomach, combine with cholesterol, and help the human body excrete.

Lower cholesterol. Among them, pectin can also be excreted by combining with cholesterol in the gallbladder, which can be

Dilute bile and prevent gallstones.