Health education knowledge 1. Primary school students' health knowledge

Tips for life and health 1, often eat supper. You'll get stomach cancer. Because your stomach can't rest. You can only eat four eggs a week. Eating too much is bad for your health. 3. Chicken contains carcinogens. It's better not to eat. It is a wrong idea to eat fruit after meals. It should be eating fruit before meals. 5. Girls should not drink green tea during menstruation. No tea anyway. Eat more things that can replenish blood. 6. Drink soy milk without eggs and sugar. Don't drink too much. 7. Don't eat tomatoes on an empty stomach. It's best to eat after meals. 8.wake up in the morning. Drink a glass of water first. Prevent stones. 9. Don't eat three hours before going to bed. You will gain 10, and drink less milk tea. Because it is high in calories and oil, it has no nutritional value. If you drink it for a long time, you are prone to diseases such as hypertension and diabetes. 65,438+065,438, freshly baked bread is not suitable for immediate consumption. Stay away from the charging stand. The human body should be more than 30cm away from the bedside. Never put it on 13, 14. Drink eight glasses of water a day and ten glasses of water a day. Bladder cancer will not come 15, drink plenty of water during the day. 16 Drink less water at night and don't exceed two cups of coffee a day. Excessive drinking can easily lead to insomnia. Stomach pain 17, eat less greasy food. Because the blood in the brain needs 5~7 hours to digest and concentrate on the stomach, it is easy to fall asleep 18, after 5 pm. Eat less when eating a big meal, because your body doesn't need so much energy after five o'clock. 19 and 10 will make you happy: deep-sea fish. Cherry 20, lack of sleep will make you stupid, you must sleep for eight hours every day, and you will not get old if you have a nap habit. The best sleep time is from 10 to 6: 22 in the morning. Don't drink more than one glass a day, because alcohol will inhibit B cells that make antibodies and increase the chance of bacterial infection. 23. Take the capsule with cold water (you can eat it first) and take it 30 minutes before going to bed. People who are angry should eat more. 25. Hair loss factors: staying up late, stress, alcohol and tobacco, spicy chicken chops, spicy pots, greasy food, and over-seasoned dishes. 26. Help hair grow: eat more cabbage, eggs and beans; Eat less sweets (especially fructose). 27. Drink a glass of lemon juice and orange juice every day. It can not only whiten skin, but also fade dark spots. 28. Apple is a standing medicine for motorcyclists, drug addicts and housewives. Only by taking one pill a day can you have a clean lung. 29. Smoking and taking vitamins (a kind of vitamin B- carotene) can cause cancer, so quit smoking as soon as possible. 30. This is the healthiest way. Pregnant women, before labor. Postpartum, menopause 3 1, smoking, the biggest relationship is lung cancer, lip cancer, tongue cancer, laryngeal cancer, esophageal cancer, also related to bladder cancer 32, drinking leads to cirrhosis 33, eat areca leads to oral fibrosis, oral cancer 34, food is too thin, lack of fiber; Containing a lot of fat, especially cholesterol, can cause gastric cancer. 35. The food is too rough and malnutrition leads to esophageal cancer. 36. Aflatoxin and nitrite in food are carcinogenic. 37. Don't smoke. Refuse to smoke secondhand smoke. 38. Drink in moderation and don't play for a long time. Don't get drunk. 39. Reduce salt consumption. Tobacco and barbecue foods 40, daily intake of fresh fruits and vegetables 4 1, daily intake of grains and beans rich in high fiber 42, daily intake of a balanced diet, not too much 43, keeping an ideal weight, but not too fat 44, keeping a regular life and exercise 45, keeping a relaxed and happy mood 46, correct eating habits: eating like an emperor in the morning, eating like a civilian at noon and begging at night.

Lack of water in the body will increase the viscosity of blood, and the blood will be too thick and thick, which will easily lead to thrombosis and induce cardiovascular and cerebrovascular diseases. Some elderly people will feel thirsty when they wake up after a night's sleep, which is also due to the fact that they can't replenish water in time at night and their blood is sticky.

It is reported that researchers from a university in Japan conducted a group study on male elderly people. One group got up in the middle of the night and drank 250 ml of boiled water, while the other group slept until dawn without drinking water at night, and then their blood concentrations were measured respectively. The results showed that the blood concentration of drinking water group was significantly reduced, and the risk of ischemic stroke and myocardial infarction was also reduced accordingly.

Because the thirst center of the elderly is not sensitive to water shortage, the elderly should always drink water when they are not thirsty. Besides drinking water actively during the day, you should also drink a cup of boiled water at night to dilute blood, reduce blood viscosity and reduce the occurrence of stroke and myocardial infarction.

-Don't wash your face with the current (very important! ) tell you a terrible thing, I hope you can be very careful when you go out to play in the future. A friend of a friend is a doctor.

Two patients came and said that they had a headache recently, and the pain was almost unbearable. After examination, it was found that their brains were full of leeches.

Later, it was found that their leeches came from a stream. I saw a clear and cold stream before going out to play, so I washed my face with my hands and found nothing unusual in the water.

But transparent leeches have entered their brains through their nostrils and multiplied. I thought it was a recurring migraine, and I didn't know it was a specific medicine for leech until I checked it.

At present, one has died, so everyone should pay more attention! Drinking lemon juice to improve osteoporosis is harmful to office workers who often eat out, because the intake of fruits, vegetables and vitamin C is relatively low. Like people in Taiwan Province Province, the Japanese who advocated "You have to work hard to win" died of the same cause as people in Taiwan Province Province. According to Hiroshi Sakura, a professor in the Department of Life Sciences at Ibaraki Christian University in Japan, regardless of the number one malignant tumor, in fact, the combined number of cardiovascular and cerebrovascular diseases ranked second and third far exceeds the death rate of cancer. Therefore, arterial stenosis or inelastic arteriosclerosis caused by thickening of arterial wall is the biggest basal cardiovascular disease.

In particular, many office workers eat a high-calorie and high-fat diet. Under the circumstances of great physical and mental pressure and obvious lack of exercise, the number of people suffering from chronic cardiovascular diseases has an increasing trend. According to his research, to prevent this.

2. Health tips

Hu Xinzhi! It is dangerous to take medicine with fruit juice. Cancer patients can't eat oranges.

High cholesterol. Eating two sweet potatoes a day is not good for eating potatoes properly. The first part, 1, should be one foot away from the book when reading and writing.

In order to protect your teeth, you must brush your teeth in the morning and evening. When watching TV, the seat should be at least two meters away from the TV.

4. To prevent ascariasis and ascariasis, pay attention to food hygiene, do not drink raw water, and wash and peel raw fruits and vegetables. 5. The heart is in the left chest of the human body.

6. The lungs are in the chest of the human body. 7. The prevention of influenza is mainly to go to public places as little as possible during the influenza epidemic.

8. To prevent intestinal infectious diseases, it is necessary to prevent "people from entering the mouth"; Develop good hygiene habits and wash your hands before and after meals. 9. To prevent hepatitis A, we should do the following: pay attention to food hygiene; Drink boiled water; Wash your hands before and after meals.

10, rats mainly transmit epidemic hemorrhagic fever. Master in the fifth and sixth grades. 1 1, flies can spread intestinal infections.

12, prevent anemia, eat more foods with high iron content such as animal liver and kelp. Smoking can cause lung cancer.

14. Bone, shrimp skin and bean products contain more calcium and phosphorus. 15, after being bitten by a dog, you must go to the epidemic prevention department to treat the wound and inject rabies vaccine in time.

Part II: 1. Brushing your teeth in the morning and evening is one of the effective ways to protect your teeth. 2. Correct reading and writing posture is beneficial to protecting eyesight.

Because raw water contains bacteria and eggs, you can't drink it. You can't go swimming in the swimming pool when pinkeye is popular.

5. The function of lung is to inhale oxygen continuously and exhale carbon dioxide. 6. Preventing myopia is mainly to achieve "three wants and three don't".

7. Hepatitis A is a highly contagious infectious disease. 8. Vaccination with BCG vaccine on time is a safe and effective method to prevent tuberculosis.

Master in Grade 5 and 6: 9. Sugar is good for protecting the liver. 10, not only do a good job in family hygiene, but also do a good job in environmental hygiene.

1 1, physical exercise is beneficial to our growth and physical fitness. 12, boys before puberty want * * * tight pants, girls don't want to gird their bellies and waists, and * * * high heels.

13, children can't smoke; Because smoking is very harmful to health. 14. The simplest and most economical way to prevent iodine deficiency disorders is to insist on eating iodized salt for a long time.

Part III: 1. Our body consists of head, neck, trunk and limbs. Vaccination can prevent diseases and keep healthy.

3, the correct way to brush your teeth is to brush the toothbrush, the upper teeth are brushed from top to bottom, the lower teeth are brushed from bottom to top, and the mandibular surface is brushed back and forth, from top to bottom. The function of stomach is to digest food, absorb nutrition and discharge dregs.

The main function of teeth is to chew food. 6. True health means that a person's physiology, psychology and ability to adapt to society and environment are in good condition. Master in Grade 5 and 6: 7. The main function of fat is to supply human body with heat; Maintain body temperature; Promote the absorption of fat-soluble vitamins; Protecting internal organs and moisturizing the skin are very important to the human body.

8. To maintain public health, we should do a good job in the sanitation of residential areas, streets and public places and take good care of public health facilities. 9. To prevent anemia, we should correct bad eating habits such as partial eclipse and picky eaters.

10. First-aid facilities include emergency telephones (120); Ambulances and hospital emergency rooms, etc. Carrying out mental health education in primary schools is a scientific and practical educational work, which should follow the following basic principles: 1. According to the characteristics of students' psychological development and the laws of physical and mental development, targeted education should be carried out.

2, for all students, through the popularization of educational activities, so that students have a positive understanding of mental health education, so that psychological quality is gradually improved. 3. Pay attention to individual differences and carry out various forms of education and counseling according to the different needs of different students to improve their mental health.

4. Take students as the main body, fully stimulate and mobilize the enthusiasm of students. Teachers' scientific guidance in mental health education should be organically combined with students' active participation in mental health education. You can't eat fried things on the roadside, eat more fruits and vegetables and eat less fried things. Improper collocation of overnight dishes or spoiled food can cause diseases. Seafood and beer can easily induce gout. Seafood contains purine and monophosphate, while beer is rich in vitamin B 1, an important catalyst for decomposing these two components.

If you drink beer while eating seafood, it will promote the combination of harmful substances in the body and increase the uric acid content in human blood, thus forming urinary calculi that are difficult to excrete. If there is something wrong with your metabolism, drinking beer while eating seafood can easily lead to a sharp increase in uric acid levels in the blood, which can lead to gout, even gouty nephropathy and gouty arthritis.

Ham and lactic acid drinks are easy to cause cancer. People who often eat sandwiches and yogurt for breakfast should be careful. Lactic acid drinks (including organic acids) such as ham and bacon in sandwiches are easy to cause cancer. Because, in order to preserve sausages, ham, bacon, bacon and so on. Food manufacturers will add nitrates to prevent food spoilage and the growth of Botox.

When nitrate meets organic acids (lactic acid, citric acid, tartaric acid, malic acid, etc. ), it will be converted into a carcinogen-nitrosamine. Therefore, don't eat this kind of processed meat products often, so as not to increase the risk of cancer.

Radish and orange are easy to induce goiter. Radish will produce an antithyroid substance thiocyanic acid. If a large number of fruits such as oranges, apples and grapes are eaten at the same time, flavonoids in fruits will be converted into thiocyanic acid that inhibits thyroid function after bacterial decomposition in the intestine, thus inducing goiter. Eggs and soybean milk reduce protein's absorption. Raw soybean milk contains trypsin inhibitor, which can inhibit the activity of human protease and affect the digestion and absorption of protein. The egg white of eggs contains viscous protein, which can combine with trypsin in soybean milk, so that the decomposition of protein is blocked, thus reducing the absorption rate of protein.

Milk and chocolate have diarrhea easily. Milk is rich in protein and calcium, while chocolate contains oxalic acid. When they are mixed together, calcium in milk will combine with oxalic acid in chocolate to form a kind of water-insoluble calcium oxalate, which will not be absorbed after eating, and will also cause symptoms such as diarrhea and dry hair, thus affecting people's growth and development. Fruits and seafood are not easy to digest. When eating seafood, if you eat grapes, hawthorn, pomegranate, persimmon and other fruits, you will have symptoms such as vomiting, bloating and diarrhea.

Because of this.

3. What health knowledge is common sense?

Health means that a person is in a good physical, mental and social state.

Health includes two aspects: first, the main organs are disease-free, the body shape develops well and evenly, the physiological functions of various human systems are good, and there is strong physical activity and labor ability, which is the most basic requirement of health; Second, it has strong disease resistance and can adapt to the influence of environmental changes, various physiological factors and pathogenic factors on the body. In the concept of the older generation, as long as the body is not sick, it is healthy, but the modern view is overall health. The World Health Organization puts forward that "health is not only the absence of physical diseases, but also mental health, good social adaptation and morality".

Therefore, the health of modern people includes: physical health, mental health, mental health, social health, intellectual health, moral health, environmental health and so on. Health is a basic human right.

Health is the first wealth in life. What are the health tips? 1. Eating late at night often leads to gastric cancer, because the stomach can't rest; I can't sleep if I eat too much, which causes insomnia. If you eat too much greasy food, you will easily accumulate fat and get fat.

2. Egg cholesterol is relatively high. How many eggs you eat every day varies from person to person. Young people can eat more, and middle-aged and elderly people should not exceed 1 a day. Don't drink tea before going to bed at night, because tea contains an ingredient called alkaloid. After people absorb this substance, it will excite the nervous system and lead to insomnia, so it is not advisable to drink tea before going to bed.

It is best to eat fruit half an hour to an hour before meals or one hour to two hours after meals. 5. Reduce the intake of salted, smoked and grilled food.

Eat fresh vegetables and fruits every day. Eat grains and beans rich in fiber every day.

Eat a balanced diet every day and don't overdo it. 6. Lack of sleep will make you stupid. You must sleep for eight hours every day and have the habit of taking a nap to slow down aging.

Proper use of sleeping pills is good for health. The best sleep time is 10 from night to 6 am.

7. Abdominal breathing: lie flat on the floor, face up, relax naturally, close your eyes, exhale, exhale all the gas in your lungs, bulge your abdomen, then tighten your abdomen, inhale, and finally relax to restore your abdomen to its original state. Repeat this process after a few minutes of normal breathing.

8. When you wake up in the morning, drink a glass of light salt water first to prevent stones. 9.***: Close your eyes, press your forehead and back neck with your fingertips, and rotate in a certain direction regularly. Don't rub aimlessly

10. Drink less milk tea, because milk tea is high in calories and oil and has no nutritional value. If you drink it for a long time, you are prone to diseases such as hypertension and diabetes. 1 1. We usually eat neither too carefully nor too roughly.

Chewing slowly will make the body lack vitamins and increase body fat and cholesterol; Eating rough food will lead to malnutrition, which is not good for the development of the body, and it will also cause stomach cancer. 12. Many people think that drinking eight glasses of water every day is good for health.

In fact, this is a common sense mistake. Experts point out that you don't have to drink eight glasses of water every day. Drinking too much water can also bring trouble to your body, and the amount of water you drink varies from person to person.

13. Drink more water during the day and less water at night. 14. Don't drink more than two cups of coffee a day. Drinking too much can easily lead to insomnia and stomachache.

15. Eat less high-fat foods containing saturated fatty acids, because it takes 5 to 7 hours to digest, and the blood in the brain is concentrated in the gastrointestinal tract, which is easy to get sleepy. Henkel machinery company.

4. Who knows the health knowledge of primary school students?

Health knowledge and health behavior of primary school students (1) 1. Hanzhong citizens' "Ten No's" norms: no spitting, no littering, no scribbling, no illegal construction, no looting, no damage to public property, no abuse of the elderly, no bullying, no foul language, no drunkenness, no gambling superstition II. Convention on civilized citizens in Hanzhong 1. Love the motherland and hometown, and safeguard national harmony and stability. Love labor, love your job, be honest and trustworthy, be diligent and thrifty. Abide by the law, maintain order, be courageous, and promote righteousness; 4. Beautify the city, pay attention to hygiene, plant trees and protect the environment; 5. Take care of public property, be enthusiastic about public welfare undertakings and protect cultural relics; 6. Respect science, teachers, education and self-improvement; 7. Respect the old and love the young, support the army and love the people, respect women, and help the disabled and help the poor; 8. Change customs, live a healthy life and keep fit; 9. Courtesy, it has been established for not less than three years since the city was included in the national list of participating cities.

Four, to create an excellent tourist city in China, we must achieve "three excellent and one satisfied", beautiful environment, excellent order, excellent service and tourists' satisfaction. "Excellence" refers to the abbreviation of creating an excellent tourist city in China. "Creating Health" refers to the abbreviation of creating a healthy city in Shaanxi Province.

The verb (abbreviation of verb) is the main task of "creating health" 1. Accelerate the pace of municipal infrastructure construction. 2. Actively carry out city appearance and environmental sanitation improvement.

3. Continue to strengthen patriotic health work. 4, conscientiously do a good job in the prevention and control of infectious diseases, food, public places, drinking water hygiene supervision.

5. Solidly promote environmental protection. 6, vigorously carry out health training and publicity work.

6. What do you mean by "four pests"? Rats, mosquitoes, flies, cockroaches. Seven, from what aspects should we establish health awareness and develop healthy habits? Consciously maintain urban environmental sanitation, do a good job in workplace sanitation, maintain family environmental sanitation, and pay attention to personal hygiene.

Citizens should take the initiative to do a good job in public health: residents living upstairs should not throw waste paper, cigarette butts, melon peels, fruit shells and other wastes out of the window for convenience, do not throw dirty water out of the window, and dump leftovers and soup. When drying clothes, wring them out first, so as not to wet the clothes and quilts hung by the neighbors downstairs.

Garbage must be sorted and dumped. In addition, the green space in residential areas should be kept clean and tidy.

Eight, citizens should pay attention to personal hygiene, wash their hands, feet, exercise, drink plenty of water, don't smoke, wash your hair and face in time. Nine, citizens should abide by public order, do not wear vests and slippers in public places.

Walk lightly and don't talk loudly, so as not to affect others. We should consciously abide by public order, do not smoke in the theater, eat noisy food, spit everywhere, throw peels and scraps of paper, and make no noise.

Watch sports games with a fair attitude and be a civilized audience. Insulting athletes and referees and throwing debris into venues are serious uncivilized behaviors and should be resolutely prohibited.

X. What is health? Health refers not only to the absence of disease or weakness, but also to the perfect state of physical and mental health and social happiness. Including three aspects, namely: (1) good health, no disease, that is, good health; (2) psychological balance, always maintaining a good psychological state, that is, mental health; (3) individuals and society are in harmony, that is, the social adaptability is strong.

XI。 What is a lifestyle? Lifestyle refers to all activities that people carry out for survival, development and enjoyment. Including work, study, nutrition, exercise, rest and living environment.

Twelve. What is mental health? Mental health refers to a state in which people's inner world is rich, harmonious and peaceful, and keeps in harmony and balance with the surrounding environment. What is the standard of mental health? (1) Normal intelligence (including observation ability, memory ability, thinking ability, imagination ability and practical operation ability).

(2) Emotional stability and optimism. (3) Sound will and coordinated behavior.

(4) concentration. (5) a complete and unified personality.

(6) Being positive, facing the reality and having good social adaptability. (7) Moderate reactivity.

(8) Psychological characteristics are consistent with actual age. (9) Self-knowledge (being able to correctly understand and objectively evaluate yourself).

(10) Creativity and sense of achievement. Thirteen, what is the normal temperature? Under normal circumstances, the adult's body temperature (sublingual temperature) is 36.5-37℃.

14. What diseases can be prevented by washing hands before and after meals? Simply put, it can prevent intestinal infectious diseases and parasitic diseases such as hepatitis, dysentery and typhoid fever. 15. When is World No Tobacco Day? Every year is May 3rd1.

16. Why is it more important to brush your teeth before going to bed at night than in the morning? Mainly the residue and debris left in the teeth after dinner, after a long stay overnight, it is easy to rot and ferment, which easily leads to oral inflammation. What are the hazards of spitting? Bacteria and viruses in sputum will fly with dust, spread diseases and pollute the environment.

5. Primary school students' health knowledge

1. When reading and writing, the distance between the eyes and the book should be one foot. It's best to take a 5-minute break every 30 minutes, stand up and walk, or look out the window. In order to protect your teeth, you must brush your teeth in the morning and evening.

When watching TV, the distance between the seat and the TV should be at least two meters. 4. To prevent ascariasis and ascariasis, pay attention to food hygiene, do not drink raw water, and wash and peel raw fruits and vegetables.

5. Wash your hands before meals. 6. The lungs are in a person's chest.

7. Preventing influenza means going to public places as little as possible during the influenza epidemic. 8. To prevent intestinal infectious diseases, it is necessary to prevent "people from entering the mouth"; Develop good hygiene habits and wash your hands before and after meals.

9. To prevent hepatitis A, we should: pay attention to food hygiene; Drink boiled water; Wash your hands before and after meals. 10. Rats mainly transmit epidemic hemorrhagic fever.

1 1. Flies can spread intestinal infections. 12. Prevent anemia and eat more foods with high iron content such as animal liver and kelp.

Smoking can cause lung cancer. 14. Bone, shrimp skin and bean products contain more calcium and phosphorus.

15. After being bitten by a dog, you must go to the epidemic prevention department in time to treat the wound and inject rabies vaccine. 16. When using the computer at ordinary times, the distance from the computer screen should not be shorter than 30 cm, and goggles certified for radiation protection should be used to avoid eye damage caused by radiation.

6. The contents of health education and the tabloid plate of common disease prevention and health habits

First, the school leaders attach great importance to it and the organization is perfect. School leaders attach great importance to patriotic health work and put it on the important agenda of school work. In order to make patriotic health work serious, solid, comprehensive and effective, our school set up a leading group for patriotic health work. The team leader is the vice president, Comrade Yang Cundong, and the members are the director of the Political and Education Department, the health teacher and the head of the grade department. Leading members have a clear division of labor. The vice principal pays attention to the quality of health education courses and is responsible for campus construction. The director of the Political and Educational Affairs Office is responsible for environmental sanitation, and health teachers are responsible for imparting health education knowledge, promoting students' health and preventing and treating common and frequently-occurring diseases. The director of the grade department is responsible for inspecting and supervising the health and teaching work of this grade. Members of the Patriotic Health Leading Group are in charge, all teachers are involved in school health work, and all departments are in charge. Cooperate with each other. This work should be planned, arranged, checked and summarized. The school requires all responsible persons to carry out their work in strict accordance with the formulated plan, with a target plan, inspection and evaluation, and summary and commendation, and at the same time implement the work responsibility to each class and teaching and research group. Second, the rules and regulations must be implemented first, to ensure the orderly and effective development of patriotic health work, and to standardize the behavior of teachers and students. Our school starts from the specific situation of our school. On the basis of soliciting opinions from the masses, more than 30 rules and regulations have been formulated and improved, such as school health management system, quantitative assessment method for class teachers, convention on classroom civilization, school environmental health inspection system, and emergency plan for prevention and control of infectious diseases. The school bound these systems into a book, sent them to various functional departments, and incorporated them into daily management work as one of the basis for evaluation. Do a good job in health care. On the basis of doing a good job in schools, the focus is on health education. Our school has incorporated health education into the school year teaching work plan, and implemented it in four aspects: teachers, teaching materials, class hours and class opening rate. The school uses the health education column to publicize the common sense of health education, do a good job in campus purification and beautification, and actively do a good job in students' health examination, so that the health education and surrounding environment of our school can meet the requirements of national standards.

7. Say you have some health knowledge.

Cut the dried tangerine peel into shreds, add a little rock sugar, and then simmer with low fire to make a thick orange juice, which can treat cough! It is best to eat after three meals. Scrubbing wooden and bamboo tables and chairs with residual tea leaves can make them smoother.

Dry the remaining tea leaves and spread them in a damp place to remove water; After the tea leaves are dried, they can also be put into pillowcases as pillow cores, which are very soft. Water is an indispensable and important substance for human survival. People can eat nothing for a day, but they can't drink water for a day. However, not all water can be drunk. The following five kinds of water will form toxic and harmful substances such as nitrite to a certain extent, which will cause certain harm to human body, so people should pay attention to it.

You can't drink seven kinds of water. First, aged water: commonly known as "stagnant water", that is, water that cannot be stored for a long time. Drinking this kind of water often will obviously slow down cell metabolism for minors and affect the growth and development of the body; Middle-aged and elderly people will accelerate aging; The incidence of esophageal cancer and gastric cancer is increasing in many places. According to the research of medical scientists, this may be related to drinking aged water for a long time.

Relevant data show that the toxic substances in aging water also increase with the increase of water storage time. 2. Thousands of boiling water: Thousands of boiling water refers to the water that has been boiled on the stove for a night or a long time, and the water that has been repeatedly boiled in the electric water heater.

Because this kind of water takes a long time to boil, the content of heavy metals such as calcium and magnesium and nonvolatile substances such as nitrite in the water is high. Drinking this water for a long time will interfere with people's gastrointestinal function and cause temporary diarrhea and bloating; Toxic nitrite can also cause hypoxia in the body, which can lead to coma, convulsion and even death in severe cases.

Third, boiler water: boiler water is leftover boiler water such as buns, especially boiler water that has been reused many times, and the nitrite concentration is very high. Drinking this water often, or cooking porridge with this water, will cause nitrite poisoning; Scale often enters the human body with water, and it can also cause digestive, neurological, urinary and hematopoietic diseases, and even cause premature aging.

Fourth, the water that can't be boiled: the tap water that people drink is chlorinated and sterilized. 13 A variety of harmful substances can be separated from chlorine-treated water, among which halogenated hydrocarbons and chloroform also have carcinogenic and teratogenic effects.

When the water temperature reaches 90℃, the content of halogenated hydrocarbons increases from 53 micrograms per kilogram to 177 micrograms, which is twice as high as the national sanitary standard for drinking water. Experts point out that drinking raw water increases the possibility of bladder cancer and rectal cancer by 2 1%-38%.

When the water temperature reaches 100℃, these two harmful substances will be greatly reduced with the evaporation of steam. If boiling lasts for 3 minutes, it is safe to drink. 5. Boil water again: Some people are used to boiling the remaining warm water in thermos bottles before drinking, in order to save water, coal (gas) and time.

But this "saving" is not enough. Because water burns and evaporates, nitrite will rise. If you drink this water regularly, nitrite will accumulate in the body and cause poisoning.

How to prevent carsickness 1 The carsick person takes Shangshi Zhitong Ointment 1 tablet one hour before taking the bus and sticks it on the liver and navel (called Shenque point). If you ride for more than one day, change to another post the next day.

Can effectively prevent carsickness. 2. Fasten your seat belt before getting on the bus to prevent internal organs from swimming excessively in the body, which helps to prevent carsickness.

3. There is a piece of ginger in your mouth. People who love carsickness should take a piece of fresh ginger with them and eat 2 pieces of fresh ginger before getting on the bus, which can greatly reduce carsickness.

Precautions with your eyes: When using a computer or reading a book or newspaper, it is best to rest for 5 minutes every 30 minutes, stand up and walk around, or look out of the window, and lengthen the line of sight that always pays attention to close range. The distance from the computer screen should not be shorter than 30 cm. Use radiation protection goggles to avoid eye damage caused by radiation.

If your eyes are dry and itchy, close them and rest for a few minutes before opening them. Never soften your eyes with your hands. If you don't get better, you must see a doctor, because it may be caused by other infections.

Daily eye care, drink plenty of water: especially in air-conditioned offices or rooms, pay special attention to water replenishment, which can improve the dryness of eye mucosa. Eye drops, physiological saline, artificial tears: people who wear contact lenses often rely on such eye drops to protect their eyes; Some people buy some eye drops in pharmacies to prevent dry eyes, but it is safer to pay attention to the source of the liquid medicine, and it is best to be prescribed by a doctor.

Because most eye drops or artificial tears are added with preservatives or fungicides for storage convenience, the average person should not have much problem using them, but it is hard to say if they are allergic. Cold and hot compress: when eyes are tired, you can use ice compress and hot compress alternately, but you can't ice compress or press your eyes. The same is true of hot compress, which lasts no more than 5 minutes at a time and can suit your eyes.