Lecture on health knowledge and epidemic prevention

1. Talking about health knowledge in kindergartens

Talking about kindergarten health knowledge 1. Talking about children's health knowledge.

1. What personal hygiene habits should primary school students develop? (1) Wash your face in the morning and evening (2) Brush your teeth in the morning and evening (3) Wash your hands before and after meals (4) Wash your feet before going to bed (5) Wash your hair frequently (6) Take a bath frequently (7) Cut your nails frequently (8) Wash raw fruits and vegetables (9) Don't drink raw water (10) Don't read while lying down. 2.( 1) Wash your hands before and after meals (2) Wash your hands before meals (3) Wash your hands after work (4) Wash your hands after playing games (5) Wash your hands after touching dirty things (6) Wash your hands after touching things that infect patients (7) Wash your hands after returning to public places (8) Wash your hands before taking chopsticks. 30-35 cm, about a foot.

4. Why do you want to get a haircut in time and wash your hair often? Hairdressing and shampooing can remove dirt, dandruff and germs from hair and scalp, and prevent tinea capitis, dermatosis and head lice. 5. Why can't I drink raw water? Raw water contains bacteria and eggs, which can cause intestinal infectious diseases (enteritis, dysentery, typhoid fever, etc.). ) and intestinal parasites (ascariasis, etc. ).

6. Why can't we eat bad food? Rotten food contains a large number of germs and toxins, which can cause food poisoning, enteritis, dysentery and other symptoms, such as nausea, vomiting, abdominal pain, diarrhea, and even life-threatening in severe cases. 7. What are the disadvantages of picky eaters and partial eclipse? Being picky about food and being partial to food will cause nutritional deficiency, lead to malnutrition and affect growth and health.

8. Why shouldn't you do strenuous activities immediately after a meal? Just finished eating, my stomach is full of food. After strenuous exercise, it affects the normal digestion of gastrointestinal tract and can cause abdominal pain, nausea and vomiting. And it will cause indigestion and stomach trouble for a long time.

9. What should I pay attention to when reading and writing? The posture is correct, the light is suitable, the distance between the eyes and the book is about one foot, and the time should not be too long. Don't read books when walking by car. 10, what are the advantages of doing eye exercises? Eliminate eye fatigue, protect eyesight and prevent myopia.

1 1. How many times should I brush my teeth every day? When do you brush it? You should brush your teeth twice a day, once in the morning and once in the evening. How to protect teeth? (1) Rinse your mouth after meals (2) Brush your teeth in the morning and evening (3) Don't bite hard things (4) Don't eat cold and overheated things (5) Don't eat before going to bed (6) Treat dental diseases in time 13. Why can't you bite your pen and finger? (1) Unclean handwriting and fingers (bacteria, eggs, dust, etc. ) will cause diseases (2) affect the development of teeth and fingers 14. How to prevent pesticide poisoning? (1) Don't play with bottles, bags and pesticide sprayers full of pesticides. (2) Avoid inhaling pesticides through the nose and mouth. (3) Prevent the skin from being polluted by pesticides. If the skin is contaminated by pesticides, it should be cleaned in time. (4) Wash the fruits and vegetables. 15. Why can't you pick your ears at will? Digging ears is an unsanitary habit, which easily damages the external auditory canal, causing inflammation or boils, and may also damage the eardrum, causing otitis media and hearing loss.

Even lead to deafness. 16, how to prevent ascariasis? (1) Wash your hands before and after meals (2) Don't drink raw water (3) Wash your fruits and vegetables raw (4) Don't bite your fingers and pens 17. How to prevent trachoma? (1) Each person should have a face towel (2) Don't rub your eyes with dirty hands (3) Keep handkerchiefs, towels and washbasins clean (4) If possible, it is best to have a special washbasin for each person (18). What are the hazards of spitting? Spitting everywhere is an uncivilized behavior: sputum contains germs, which will pollute the environment and spread diseases.

19, what do you mean by "four pests"? Flies, mice, mosquitoes and cockroaches. What should I do after being bitten by a dog? Go to the hospital or health center for treatment immediately and inject rabies vaccine in time. 2 1. How long should primary school students sleep at least every day? 10 hour 22. What diseases can flies and mosquitoes spread? Fly transmission: enteritis, dysentery, typhoid fever, hepatitis A, etc.

Mosquito transmission: Japanese encephalitis, malaria. 23. What is the main route of transmission of hepatitis? Hepatitis A: The water source is mainly polluted by patients' feces, and hepatitis B is mainly transmitted through blood and blood products.

24. Why can't I pee anywhere? (1) pollute the environment (2) spread diseases (3) be uncivilized. Why does everyone need a toothbrush to brush their teeth? Prevent diseases from infecting each other. How to prevent colds? (1) Exercise, enhance physical fitness (2) Open the window frequently for ventilation (3) Change clothes with climate change (4) Don't go to patients' homes (5) Don't go to public places when a cold is prevalent. 27. What if there are hepatitis patients at home? (1) Timely treatment (2) Isolation and disinfection (boil the chopsticks, towels and clothes used by patients with boiling water. Wipe the patient's used furniture with disinfectant. (3) Wash your hands after touching patients (4) Don't eat patients' leftovers. 28. How to keep the classroom clean and hygienic? (1) Sweep the floor every day. Sprinkle water before sweeping the floor (2) Clean tables, chairs, doors and windows frequently. (3) Don't litter. (4) Don't spit everywhere. (5) Keep the tables and chairs tidy. (6) Pay attention to ventilation. 29. What should I do to maintain public health? (1) Clean indoor and outdoor environment (2) No spitting (3) No littering (4) No defecation (5) No doodling on walls, desks and chairs.

2. How do kindergarten parents make speeches on life hygiene?

A: Gather a ray of sunshine to weave a colorful childhood. B: Leave a ray of breeze to spread the hope of tomorrow. A: Dear teachers and classmates: Hello, everyone.

Nice to see you again on this warm afternoon. I am the host Wang Xinli.

I'm the host, Ye Lijun. In this program, we will learn some health knowledge in daily life with you. Play music 1 min, and then turn down the volume. A student, you know? April is Patriotic Health Campaign Day in China.

B Yes, hygiene is closely related to our life, and it is also closely related to our life. A We should develop hygiene habits from childhood and be a young pioneer who loves hygiene and cleanliness.

B Then let's learn about personal hygiene! A 1, wash your hands before and after meals; 2, do three diligence: diligent bathing, diligent haircut, diligent dressing 3, diligent nail cutting; 5. Wash your hands frequently anytime and anywhere; 6. Pay attention to eye hygiene: don't read in strong light, don't read in a walking car, don't read while lying down, and don't rub your eyes with dirty hands; 7. Do not eat food without health protection, eat clean food and drink raw water; 8. Wash your face in the morning and evening, wash your face with running water, and don't use towels, washbasins and other items with others; 9. Brush your teeth in the morning and evening and rinse your mouth after meals; 10, insist on proper physical exercise every day, in order to enhance physical fitness and maintain good and abundant energy. B Please remember these ten personal hygiene knowledge to make yourself healthier! /kloc-Turn down the music in 0/minute. Classmate A, after personal hygiene, let's learn about food hygiene.

B In daily life, people often have some unhealthy eating habits and behaviors, but many people don't pay attention to them, which is very harmful to their health. This is the truth of the sentence "the disease enters from the mouth"

So students, we should pay attention to: 1, and get into the habit of washing hands before eating. People's hands do this and that every day, touching all kinds of things.

Will be infected with germs, viruses, parasitic eggs. Wash your hands carefully with soap before eating to reduce the possibility of "illness from the mouth".

2. Wash raw fruits and vegetables. Fruits and vegetables will not only be infected with germs, viruses and parasite eggs, but also remain pesticides and insecticides. If it is not cleaned, it may not only infect diseases, but also lead to pesticide poisoning.

Don't eat wild vegetables and fruits casually. There are many kinds of wild vegetables and fruits, some of which contain toxins harmful to human body, so it is difficult for inexperienced people to distinguish them clearly. Only by not eating wild vegetables and fruits casually can we avoid poisoning and ensure safety.

Don't eat rotten food. When food rots and deteriorates, it will have a sour and bitter taste; It gives off a special smell, which is caused by the reproduction of bacteria. Eating these foods will cause food poisoning.

Don't buy or eat the inferior food and drinks sold by street vendors at will. These inferior foods and drinks are often unqualified, and eating and drinking will be harmful to health.

6. Don't drink raw water. Whether the water is clean or not is difficult for the naked eye to tell. Clear and transparent water may also contain germs and viruses, and drinking boiled water is the safest.

Student B, food hygiene is related to our life, so we must pay attention to it. Play music 1 Turn down the music after one minute. B, environmental sanitation is also very important. Let's learn about environmental sanitation together.

Campus is an important place for us to study and work. The quality of campus environmental sanitation directly affects the work, study and life of teachers and students. At the same time, campus environmental sanitation is also an important symbol of a college's civilization, an intuitive influence factor on the school's external image, and a reflection of the comprehensive quality of school students.

As a student, the first thing we should do is to keep the campus clean and don't throw peels and scraps of paper everywhere. Everyone should develop good hygiene habits, so that our campus will always be clean and tidy, and all teachers and students can have a good working and learning environment. We should take the initiative to "wipe stains when we see them, pick up scraps of paper when we find them, sweep them when we meet garbage, and throw them when we meet moving pipes", with beautiful words and behaviors, without damaging flowers, grass and trees, wasting a drop of water and electricity, tearing up, littering, spitting and doodling.

Start from me, start from the small things around you, and be a contemporary civilized student. Students, we should do: 1, no littering, no chewing gum and no spitting.

Leave less footprints on the wall, spit less gum on the ground, throw less peels, have fewer sanitary corners, and have more clean paradise. 2, do not practice the lawn, do not pick flowers and shake trees.

"Grass also has life and needs your care." 3. Strengthen ideological and moral education.

Take the initiative to pick up the rubbish thrown by others on the ground, form the good habit of "civilization and neatness" and create a beautiful campus together! B students, I believe that as long as we can pick up a piece of white, we can decorate an inch of green shade, and as long as we do our bit, we can create a cleaner campus. /kloc-Turn down the music in 0/minute. Classmate A, how time flies! It's time to say goodbye again

B Yes, as the music falls, we should say goodbye again. Remember to listen to the next program on time.

3. Collect 20 cases of children's health knowledge.

I am a kindergarten teacher, and now I want to find articles about infant health care, because I will go to Qiu Lai to find articles about this season in summer. I found an example, as follows: summer has passed and autumn has come, which is a good time to promote the baby's growth and development.

But young parents may not all know how to seize this opportunity. Autumn health care mainly includes the following items:. Prevention of diarrhea babies are most prone to diarrhea in summer, and the incidence of diarrhea shows a downward trend after autumn, but the heart of prevention cannot be slack.

Because a microorganism called rotavirus is ready to move, it often attacks children's digestive tract in September or 10, causing diarrhea, which is called "autumn diarrhea". Diarrhea in autumn is completely preventable. Parents should help their children grasp the following points: First, block the entrance.

Specific measures include paying attention to food hygiene, not eating raw and cold food, and boiling and disinfecting toys and utensils regularly. At the same time, we should do a good job in environmental sanitation and eliminate flies and other carriers that spread viruses and bacteria.

In addition, the sick children were immediately treated in isolation, and the excreta was handled well. Healthy children should avoid contact with sick children.

2. Ascaris timely deworming is a well-known "criminal" that harms baby's health. It not only plunders nutrition, but also induces anemia, malnutrition and other diseases, resulting in backward physical development and impaired intelligence. According to doctors in Britain and Jamaica, children with ascaris parasites in their intestines have impaired their hearing, short-term or long-term memory, reading and memory to some extent. Once the ascaris lumbricoides is eliminated, the above symptoms disappear, and the intelligence can be fully recovered after nine weeks.

When is the best pest control effect? Experts think it's autumn. Judging from the life history of ascaris lumbricoides, although children can be infected with eggs all year round, they have the most opportunities in summer.

If you suck your fingers, the eggs will enter your body. After a period of evolution, they will eventually become insects and settle in the small intestine. It's autumn. At this time, taking pesticides (such as intestinal worms) can catch them all, leaving no future trouble. 3. Cold water bathing is also a part of autumn health care, improving the baby's cold adaptability and preparing for winter.

Including cold water to wash hands, face, body, shower and swimming. Cold water bath exercise should be gradual with the change of age.

At first, it is advisable to use warm water close to body temperature, and then gradually increase it to 28 degrees Celsius. Dry with a dry towel after washing. Babies under the age of three can do this. Cold shower is a good exercise method to keep fit. The water temperature also starts from 35 degrees Celsius and gradually drops to 26-28 degrees Celsius. The shower head should not exceed 40 cm above the head. It should be sprayed from top to bottom to chest and back and then down. We should act quickly. After taking a bath, wipe your body with a dry towel until it is hot and slightly red. It is not allowed to shower the head directly with cold water (this method is only suitable for children over 3 years old).

Cold water bath exercise can promote blood circulation and metabolism, improve the sensitivity of body temperature regulation, enhance the body's adaptability to external cold and hot temperature changes, and help the baby spend the winter safely.

4. How do kindergarten parents make speeches on life hygiene?

A: Gather a ray of sunshine to weave a colorful childhood. B: Leave a ray of breeze to spread the hope of tomorrow. A: Dear teachers and classmates: Hello, everyone.

Nice to see you again on this warm afternoon. I am the host Wang Xinli.

I'm the host, Ye Lijun. In this program, we will learn some health knowledge in daily life with you. Play music 1 min, and then turn down the volume. A student, you know? April is Patriotic Health Campaign Day in China.

B Yes, hygiene is closely related to our life, and it is also closely related to our life. A We should develop hygiene habits from childhood and be a young pioneer who loves hygiene and cleanliness.

B Then let's learn about personal hygiene! A 1, wash your hands before and after meals; 2, do three diligence: diligent bathing, diligent haircut, diligent dressing 3, diligent nail cutting; 5. Wash your hands frequently anytime and anywhere; 6. Pay attention to eye hygiene: don't read in strong light, don't read in a walking car, don't read while lying down, and don't rub your eyes with dirty hands; 7. Do not eat unsanitary food, do not eat unwashed food, and do not drink raw water; 8. Wash your face in the morning and evening, wash your face with running water, and don't use towels, washbasins and other items with others; 9. Brush your teeth in the morning and evening and rinse your mouth after meals; 10, insist on proper physical exercise every day, in order to enhance physical fitness and maintain good and abundant energy. B Please remember these ten personal hygiene knowledge to make yourself healthier! /kloc-Turn down the music in 0/minute. Classmate A, after personal hygiene, let's learn about food hygiene.

B In daily life, people often have some unhealthy eating habits and behaviors, but many people don't pay attention to them, which is very harmful to their health. This is the truth of the sentence "the disease enters from the mouth"

So students, we should pay attention to: 1, and get into the habit of washing hands before eating. People's hands do this and that every day, touching all kinds of things.

Will be infected with germs, viruses, parasitic eggs. Wash your hands carefully with soap before eating to reduce the possibility of "illness from the mouth".

2. Wash raw fruits and vegetables. Fruits and vegetables will not only be infected with germs, viruses and parasite eggs, but also remain pesticides and insecticides. If it is not cleaned, it may not only infect diseases, but also lead to pesticide poisoning.

Don't eat wild vegetables and fruits casually. There are many kinds of wild vegetables and wild fruits, some of which contain toxins harmful to human body. It is difficult for inexperienced people to distinguish clearly. Only by not eating wild vegetables and fruits casually can we avoid poisoning and ensure safety.

Don't eat rotten food. When food rots and deteriorates, it will have a sour and bitter taste; It gives off a special smell, which is caused by the reproduction of bacteria. Eating these foods will cause food poisoning.

Don't buy or eat the inferior food and drinks sold by street vendors at will. These inferior foods and drinks are often unqualified, and eating and drinking will be harmful to health.

6. Don't drink raw water. Whether the water is clean or not is difficult for the naked eye to tell. Clear and transparent water may also contain germs and viruses, and drinking boiled water is the safest.

Student B, food hygiene is related to our life, so we must pay attention to it. Play music 1 Turn down the music after one minute. B, environmental sanitation is also very important. Let's learn about environmental sanitation together.

Campus is an important place for us to study and work. The quality of campus environmental sanitation directly affects the work, study and life of teachers and students. At the same time, campus environmental sanitation is also an important symbol of a college's civilization, an intuitive influence factor on the school's external image, and a reflection of the comprehensive quality of school students.

As a student, the first thing we should do is to keep the campus clean and don't throw peels and scraps of paper everywhere. Everyone should develop good hygiene habits, so that our campus will always be clean and tidy, and all teachers and students can have a good working and learning environment. We should take the initiative to "wipe stains when we see them, pick up scraps of paper when we find them, sweep them when we meet garbage, and throw them when we meet moving pipes", with beautiful words and behaviors, without damaging flowers, grass and trees, wasting a drop of water and electricity, tearing up, littering, spitting and doodling.

Start from me, start from the small things around you, and be a contemporary civilized student. Students, we should do: 1, no littering, no chewing gum and no spitting.

Leave less footprints on the wall, spit less gum on the ground, throw less peels, have fewer sanitary corners, and have more clean paradise. 2, do not practice the lawn, do not pick flowers and shake trees.

"Grass also has life and needs your care." 3. Strengthen ideological and moral education.

Take the initiative to pick up the rubbish thrown by others on the ground, form the good habit of "civilization and neatness" and create a beautiful campus together! B students, I believe that as long as we can pick up a piece of white, we can decorate an inch of green shade, and as long as we do our bit, we can create a cleaner campus. /kloc-Turn down the music in 0/minute. Classmate A, how time flies! It's time to say goodbye again

B Yes, as the music falls, we should say goodbye again. Remember to listen to the next program on time.

5. Little common sense infant health care knowledge

After entering winter, the cold weather is the season with frequent colds, especially in public places and places where children live in schools, kindergartens and other institutions, and more attention should be paid to preventing the occurrence and prevalence of respiratory diseases such as colds. In order to make children spend the winter smoothly, we should do the following:

Turn on step reading mode

operational approach

0 1

Reasonable diet

Winter is the season of high incidence of colds, and a reasonable diet can increase the body's disease resistance. Breast milk is not only the best food for children's physical and intellectual development, but also contains several immunoglobulins that have protective effects on respiratory mucosa, which can reduce the occurrence of respiratory diseases. In addition to breast-feeding, complementary foods and foods rich in vitamins, such as fresh fruits, vegetables, eggs, fish and meat, should be added in time according to the needs of children's growth and development, with balanced nutrition to prevent partial eclipse and picky eaters, prevent the lack of vitamins and trace elements from reducing children's body resistance, properly replenish water and prevent respiratory dryness, so as to reduce the occurrence of respiratory diseases.

02

pay attention to the diet

"If you want your child to be safe, you will be hungry and cold." Now some parents are always worried that their children will not eat enough, and they always want their children to eat more. Children eat too much, and it is easy to form food stagnation constipation in a few days. Because Chinese medicine believes that "lung and large intestine are exterior and interior", that is, diseases of large intestine will affect lung function. Studies have shown that large intestine dry stool can increase the mortality of macrophages and decrease the resistance of lung tissue, thus causing repeated lung and respiratory tract infections.

03

Protect skin

Winter is cold and dry, children's skin loses more water, sebaceous glands secrete less, and the skin is easy to dry and itch. Let children eat more fruits and vegetables, drink more boiled water, wash their hands, feet and faces with hot water, and then apply some skin cream appropriately.

6. Health tips

1. Wash your hands before and after meals: Hands are the "diplomatic organs" of the human body and play a leading role in all people's "foreign affairs activities", such as doing all kinds of work, taking out garbage, brushing spittoons, washing feet, wearing shoes and cleaning stools.

Therefore, hands are easily infected with many pathogenic microorganisms. Scientists have made such a survey that an unwashed hand contains at least 40,000 to 400,000 bacteria.

Nail seam is a good place for bacteria to hide. One nail seam can hide as many as 3.8 billion bacteria. In addition, someone did an experiment. Patients with acute dysentery use 5~8 layers of toilet paper, and Shigella can penetrate into their hands. Shigella can survive for 3 days in their hands.

The flu virus can survive for 7 days on wet and warm hands. So, my hands are dirty.

Moreover, when traveling, visiting and studying, and performing tasks, hands often touch some items and get dirty. In particular, patients with infectious diseases and people who look healthy but actually have viruses in their bodies often spread pathogenic microorganisms to various articles and appliances. When a healthy person touches his hand, pathogenic microorganisms will reach you.

If you don't wash your hands before and after meals, you will bring bacteria into your mouth and eat them in your stomach. This is what people often say: "Bacteria come from hands and diseases come from mouth." Therefore, it is necessary to develop the habit of cutting nails and washing hands frequently before meals, after defecation and after work.

Washing hands can remove bacteria and eggs attached to hands. Washing your hands with running water can remove 80% bacteria from your hands. If you wash your hands with soap first and then with running water, you can wash 99% of the bacteria off your hands. When washing hands, be careful that several people should not use the same basin of water to avoid cross-infection and spread diseases to each other for more than 15 seconds.

Second, don't spit or shake your nose: phlegm is a viscous liquid secreted by the respiratory tract and excreted by coughing. Everyone knows how to spit, but not everyone has a good way to spit.

Some people don't pay attention to the environment, spit everywhere, and throw their noses all over the floor, which not only affects hygiene but also harms their personal image. Some so-called "health lovers" spit sputum on the ground and wipe it with shoes worn on their feet, thinking that even if there are no traces of sputum, it will not hinder hygiene and health.

I don't know that sputum contains millions of bacteria, viruses, fungi, mycoplasma and so on. Especially people with respiratory diseases, such as tuberculosis, influenza and meningitis, have more bacteria and viruses in their sputum, especially in the early stage of SARS epidemic.

Someone checked a mouthful of sputum and found hundreds of thousands of bacteria in it. Millions of mycobacterium tuberculosis can be found in the sputum of the most annoying tuberculosis patients.

If you spit on the ground and the sputum is dry, bacteria will fly into the air with the dust, and healthy people may get respiratory diseases by inhaling such dust. So we should form a good habit of not spitting.

Sputum should be spit in the spittoon, which should be scrubbed regularly every day. Where there is no spittoon, the spittoon should be wrapped in waste paper and thrown into the wastebasket or dustbin to avoid spitting and maintain the hygiene of public places.

Third, don't cough or sneeze at others: coughing and sneezing are normal physiological phenomena of people, which is not surprising. However, sneezing in front of others or food without paying attention to the occasion is an unhealthy and impolite bad behavior.

According to the survey, a cough can eject 20,000 tiny droplets, and a sneeze can eject nearly 654.38+0 billion droplets. Moreover, the speed of droplet ejection is very fast, and it can fly out in less than 1 second.

6 meters, 9 meters away with the wind. The nasal cavity and throat are one of the places with the densest bacteria and viruses, and the sprayed droplets contain a lot of bacteria and viruses.

A sneeze can spit out 85 million bacteria. These tiny water droplets can float in the air for a long time, 30-60 minutes in a windless room, and up to 30 hours. After the water in the water drops evaporates, bacteria and viruses fly with the dust, which continues to endanger people's health.

Among the legal infectious diseases in China, 15 is airborne (such as influenza, measles, chickenpox, mumps, mycoplasma pneumonia, etc. Therefore, for everyone's health, people should pay attention to politeness and hygiene when coughing and sneezing, especially those with respiratory infectious diseases.

If you can't help sneezing in front of people or food, you should immediately take out a towel or paper towel and cover your mouth and nose. Turn your back on others or food when it is too late, and cover your mouth and nose with your hands.

4. No smoking: Smoking is harmful and useless, which is recognized by the scientific community all over the world. Tobacco smoke contains more than 3000 kinds of harmful substances.

Among them, there are mainly nicotine (nicotine), cigarette tar, light hydrofluoric acid, acrylic acid, carbon monoxide and so on. Nicotine is a toxic substance. Tobacco tar contains nitrosamines, phenols, arsenic, radioisotopes and other carcinogenic or carcinogenic substances, especially benzopyrene, which is recognized as a strong carcinogen.

According to statistics, the incidence of lung cancer in people who smoke 40 cigarettes a day is 70 times higher than that in non-smokers. In addition, smoking is also closely related to lip cancer, laryngeal cancer, esophageal cancer and gastric cancer.

Smoking can promote the development of systemic arteriosclerosis and hypertension, so the incidence and mortality of cardiovascular and cerebrovascular diseases of smokers are higher than those of non-smokers. In addition, smokers are prone to colds, rhinitis, sinusitis, bronchitis, bronchitis, emphysema and so on.

Other studies have shown that smoking is related to male impotence. .

Some people say that smoking can refresh oneself and improve work efficiency. Actually, this is a misunderstanding.

Modern medical research believes that nicotine has a dual effect on the central nervous system, that is, it is first excited and then inhibited. Therefore, people who smoke heavily for a long time lose their balance in the process of excitement and inhibition in the cerebral cortex, but instead show fatigue, insomnia, decreased memory, distracted attention and decreased work efficiency.

The incubation period of many smoking-related diseases is very long, and it is not as fast as eating highly toxic substances. So in a short time, people often can't see his harm.

Sometimes it takes decades from smoking to death. This is also the main reason why people don't know enough about the harm of smoking.

There are about 200-300 million smokers in China, accounting for more than15 of the national population and10-0/0.2 billion smokers in the world. Not only will it consume a lot of money every year, but many years later, the state and individuals will invest unimaginable money to treat various diseases caused by smoking. At present, European and American countries have seen the great harm of smoking and applied laws and economic policies.