The harm caused by wrong common sense to people

1. What are some common sense things that we are wrong about in daily life?

Eat while reading (reading newspapers or TV).

It is a wrong concept to eat fruit after a meal. Fruit should be eaten before a meal. Do not add eggs and sugar when drinking soy milk, and do not drink too much. When you have a nosebleed, raise your chin. The only advantage of this method is that it will not flow to the floor, but it will not stop the nosebleed. Instead, it will cause the nosebleed to flow into the throat, and may even cause vomiting and suffocation.

Shaving armpit hair can reduce sweating. Shaving armpit hair has no effect on preventing the production of sweat. On the contrary, after shaving armpit hair, the moisture discharged from the armpits cannot be hidden, leaving sweat stains on clothes. Moreover, shaving armpit hair can easily cause hair root abscesses. Brushing your hair 100 times a day is good for your health. Brushing your hair too much will damage the sebaceous glands on the scalp. People with oily hair, especially, should comb their hair less.

If you have dry hair and long hair, it is more suitable to comb your hair more. However, it is best to use a comb made of natural bristles, which is less likely to damage the scalp.

Using boiling water to make tea will destroy the vitamin C in the tea leaves. It is best to use boiled water at 70-80 degrees Celsius to make tea. Tea brewed at this water temperature is most beneficial to human health.

Drink vinegar after fish bones get stuck in the throat. Vinegar not only cannot eliminate fish bones, but can also cause mucous membrane erosion and esophageal edema. Girls should not drink green tea during menstruation. Anyway, don’t drink tea. Eating more can replenish blood. If you drink strong tea after being drunk, the caffeine in the tea will react with alcohol to produce adverse effects, aggravating the pain of the drunk person. Use toilet paper to wipe tableware, fruits or wipe your face. Test results show that many toilet papers (especially toilet paper produced by informal manufacturers sold on the streets) are not disinfected well. They contain a large number of bacteria due to incomplete disinfection. Even if they are well disinfected, they are still displayed. contaminated during the process.

Using such toilet paper to wipe dishes or fruits will not wipe the items clean. Instead, it will bring more bacteria to the food during the wiping process. Long-term use of the same medicated toothpaste. Medicinal toothpaste has a certain inhibitory effect on certain bacteria.

However, if you use the same medicated toothpaste for a long time, the bacteria in your mouth will slowly adapt and develop drug resistance, making the medicated toothpaste ineffective. Therefore, in our daily life, we should change toothpaste regularly.

Take a bath to find warmth in the cold winter. If the water temperature is too hot, it will not only put a high load on the heart, but also the skin will become dry and the capillaries will burst. The harm caused by computers to the eyes is radiation, but LCD does not harm the eyes. First of all, radiation does not cause visual fatigue.

And as long as the monitor you use is a qualified product, its radiation level is already within the safe range. The root cause of the damage caused by computers to human eyes is: as a luminous body, the nature of the light emitted by computers is a strong fatigue to the eyes***! Although LCD screens (including notebooks) solve the radiation problem, strong light reflection cannot solve it at all.

The visual distance of the eyes is even more forcibly shortened! Therefore, laptops are more likely to cause visual fatigue than desktop computers! Wearing glasses when using the computer If you only have one pair of myopia glasses and you still wear them when facing the computer and reading books, you are 100% wearing the wrong glasses! Myopia is called myopia because such eyes have clear near vision but insufficient far vision. Looking at a computer or reading a book are typical close-up eyesight uses, and you generally don’t need to wear glasses! Any responsible ophthalmologist will emphasize when prescribing glasses for you: the glasses you are prescribed are for distance vision! (Walking, reading the blackboard in class, watching movies and TV, etc.) People with high myopia or abnormal adjustment need two pairs of glasses with different degrees. The difference between the two degrees varies from person to person and may exceed 300 degrees! A high power is used for distance vision, a small power is used for near vision.

Wearing the wrong glasses will put a greater adjustment burden on your eyes! Add depth! Stretch your eyes! The good news for chocolate lovers is that this is also a false health myth. There is no experimental evidence that eating chocolate causes acne.

Current treatments for acne vulgaris are based on controlling sebum secretion, ensuring smooth hair follicles, keeping skin clean, and controlling bacterial infections. Milk produces phlegm. Many mothers dare not give milk to children with colds because milk produces phlegm.

An Australian research team recruited some volunteers and infected them with rhinovirus (the causative agent of the common cold). After 10 days of observation, they found no connection between drinking milk and sputum secretion. . People's subjective understanding that milk produces phlegm is because milk makes our saliva become sticky, making it feel like there is phlegm.

Vitamin C can prevent colds. American chemist Pauling, winner of the 1954 Nobel Prize in Chemistry and the 1962 Nobel Peace Prize, wrote a book called "Vitamin C and the Common Cold". The main point in the book is that taking 1,000 mg or more of vitamin C every day can prevent colds; vitamin C is antiviral.

However, several large-scale experiments have confirmed that although vitamin C can help relieve symptoms in cold patients, there is no credible evidence that taking large doses of vitamin C can prevent colds, whether in adults or children. cold. It should be noted that long-term intake of large doses of vitamin C may cause diarrhea, anemia and urinary tract stones.

Doctors recommend that the daily intake of vitamin C should not exceed 200 mg.

Eating before going to bed is easy to gain weight. People often warn girls who want to be slim not to eat before going to bed. The reason is that when sleeping, the metabolism is slow, calories cannot be "burned off" by the body, and energy is more easily converted into fat and stored.

In fact, the calories consumed at night are no different from the calories consumed during the day. The reason for this misunderstanding is that people often choose snacks such as biscuits and potato chips before going to bed, which are high-calorie foods.

Ginkgo leaf tea is good for health. Ginkgo leaves contain a large amount of flavonoids with antioxidant properties. Experiments have shown that flavonoids can improve the cardiovascular and cerebrovascular functions of experimental animals and have certain anti-tumor effects.

However, ginkgo leaves also contain another substance-gingkolic acid, which is also a substance that causes people to be poisoned by eating ginkgo. Eat more spinach to supplement iron. The iron content of spinach is almost the same as that of other green leafy vegetables, and spinach is rich in oxalic acid, which actually affects the absorption of iron.

The source of this legend is a report on the iron content in spinach published by scholar Wolf in 1870. It was not until 1937 that it was discovered that Wolff had placed the decimal point one wrong place.

However, the content of vitamins A, E and carotene in spinach is relatively high, and eating more spinach is indeed beneficial to health. The darker the sunglasses, the more they can prevent ultraviolet rays from harming the eyes. Sunglasses prevent strong light from harming the eyes.

But.

2. Consequences of a bad lifestyle Examples The more the better

The body is the capital of revolution. Without a good body, everything else is out of the question. So what bad lifestyles in daily life will affect our health? Let’s learn more about the relevant common sense in detail.

1. Repeated weight loss

Comments: Everyone loves beauty, and they will definitely make many mistakes in pursuit of beauty in their lives.

Harm: Medical research shows that repeated weight loss will reduce the body's long-term immunity. Although the exact cause has not yet been identified, researchers have found that repeated weight loss reduces cell viability and the ability to fight colds, infections and early-stage cancer cells.

2. Staying up late is equal to chronic suicide

Comments: There are many "late-nighters" who have to stay up late in order to work and make a living.

Harm: If people often stay up late, the most serious sequelae will be fatigue and lack of energy; the body's immunity will also decrease accordingly. Symptoms of autonomic nervous system disorders such as colds, gastrointestinal infections, allergens, etc. will come to you.

3. Often exposed to noisy environments

Comments: With the enrichment of material life, people are often exposed to noisy environments, which can easily lead to a decrease in the ability of the auditory system to receive medium-wave sounds, and sometimes it is difficult to hear. Listen carefully to what others say, especially when there is noise around you.

Dangers: If you loved rock music when you were young, you will find that your hearing is not as good as before. Frequent exposure to noisy environments can easily lead to a decrease in the ability of the auditory system to receive medium-wave sounds. Sometimes, it is difficult to hear what others are saying, especially when there is noise around.

4. Alcoholism

Comments: Long-term excessive drinking can cause chronic alcoholism.

Harm: Alcoholism can easily lead to alcohol poisoning. A large amount of alcohol will kill the nerve cells in the brain. If things go on like this, it will lead to memory loss. It may also cause liver diseases such as fatty liver and cirrhosis. In severe cases, liver transplantation is necessary to save lives.

5. Smoking

Comments: As we all know, smoking has hundreds of harms and no benefits. Dangers: The harmful ingredients in cigarettes can significantly increase your risk of heart disease, lung cancer, and other types of cancer. Specifically, the proportion of cancer deaths caused by smoking can account for 30% of all cancer deaths.

6. Overly stressful life

Comments: Excessive mental and physical work is followed by a weakening of the ability to resist fatigue and disease prevention, which may cause a variety of diseases. .

Harm: Some young and middle-aged people who are engaged in mental work and business have their life machines overloaded all day long. Due to their strong desire to compete, they are under tremendous physical and psychological pressure.

7. Bad sleep habits accompany life

Comments: Sometimes the "sleep theory" you are adhering to may not be scientific, and sometimes the method you dismiss is really effective. .

Harms: The main characteristics of bad sleeping habits are: 1: Sleeping tonic type, 2: Dozing off on the way, 3: Nervous medication type.

3. What harm will environmental problems bring to people?

1. Global warming: the two poles (Antarctic and Arctic) will melt, the snow mountains will melt, the sea water will rise, the islands will be submerged, and the floods will occur. Disasters, heightening of urban flood walls, abnormal climate, etc., etc. 2. Destruction of the ozone layer: A large amount of ultraviolet rays from the sun penetrate, killing humans, and various human diseases such as skin cancer increase. 3. Reduction in biodiversity: Mutated bacteria will increase, There are fewer natural enemies, more pests and diseases, endangering humans, plants, etc., the biological chain is broken, and the world is in chaos. 4. Spread of acid rain: people will develop resistance and eat more and more acid, sweating will also be acidic, and holes will appear in clothes. , feces is also sour, scientists have their work cut out for them. 5. Forest decline: ecological destruction, lack of oxygen, evaporation of water, many sandstorms, no raw materials for houses, no chopsticks, etc. People are more sad. 6. Soil desertification: soil erosion , the air is turbid, sheep, rabbits, and herbivorous animals have no food, we have no food and less fun. 7. Air pollution: Disastrous weather increases, acid rain corrodes buildings, etc., there are many respiratory diseases, the chance of lung cancer increases, temper becomes bad, and it is easy to Breaking the law and causing the dishes to taste bad. 8. Depletion of fresh water resources and pollution: People are poisoned after drinking harmful water containing benzene and benzene. The depletion of fresh water resources is the most terrible thing. The production of rice, vegetables, fruits, etc. is greatly reduced, some factories are shut down, and workers are unemployed. The consequences are very serious. Seriously. Water is the source of all life. 9. Marine pollution: aquatic animals and plants will die, the temperature will rise, and economic benefits will decrease. Water vapor will also circulate around the world and evaporate into the universe, stars, moon and other gravitational changes.

4. The benefits and disadvantages that technology brings to people

The benefits and disadvantages of technological development to human beings

The affirmative argument:

The development of science and technology is the road to a strong country, and the development of science and technology is the first driving force for the progress of the Chinese nation. Without the development of science and technology, how could we have the happy life we ??have today? Without technological development, how would you sit in the classroom now?

If the development of science and technology is wrong, then why did inventors and scientists such as Galileo, Newton, Edison, Marie Curie, and Einstein devote their precious lives to science? Why spend so much of your precious time on the “wrong” cause? Are they incapable of judgment? Who thinks their death is worthless, and who thinks their dedication to science is meaningless?

Of course, the development of science and technology has also caused certain negative impacts, but if humans can exhaust resources, will it cause the current shortage of resources? If humans could save water and factories did not discharge sewage illegally, would it cause the current serious water shortage? There are many similar things going on, and instead of introspecting, some people blindly point the blame at "technology".

We are happy, we are lucky, we have caught up with an era of rapid technological development, life is so comfortable, our average life span is 30 years longer than in ancient times, and we don’t even have to leave home to visit relatives and friends. Aren’t these all the benefits that science and technology development has brought to us?

Technology changes history, and knowledge changes destiny. We have entered the 21st century and an era full of high technology. Science has changed our lives, and science has changed our destiny. "Knowledge is power." Why can we, the People's Republic of China, a huge country with a population of 1.3 billion, stand tall in front of the world? Because our technology is constantly developing! Our technology is constantly improving!

If you say that technological development does more harm than good, can you come to class within a week without taking a car, using gel pens, ballpoint pens, or fountain pens? Can you not watch TV, listen to the news, read newspapers, read books, or surf the Internet for a week? Can you avoid eating the developed hybrid rice for a week? Don’t eat pasta? No drinks?

The 8,000-year history of Chinese civilization is ironclad evidence. History is changing every moment, and science and technology are developing every moment. Human beings learned to use or cook food from the primitive life of eating hair and drinking blood, from relying on nature to breeding and raising, from being unarmed to metallurgy and stone smelting. Isn't this all progress, isn't this all development? If the disadvantages outweigh the advantages, then why do human beings unanimously choose progress? Only progress can make tomorrow better!

Summary of the affirmative argument:

1. Greatly improved social productivity.

2. Promoted the harmonious development of society.

3. Promote the development of human civilization.

4. Improve people’s living standards and quality of life.

5. Promote economic and social development and improve material quality.

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6. Make the country more prosperous and powerful, and the people richer and happier.

5. What harm will the wrong sitting posture bring?

The zombie’s back is crossed and its legs are crooked. Crossing your legs unconsciously on the armrest of the chair? This posture restricts blood flow to one leg and puts the weight of the upper body on one leg, causing the spine to curve and the back to stiffen.

In addition, chairs that cannot be adjusted or have no backrest often cause the body to lean forward excessively, making the symptoms of spinal curvature and lumbar disc herniation more serious. Correct sitting posture Everyone's body shape is different, so it is best to choose a manually "adjustable" office chair.

The height of the chair should be such that the feet can be placed flat on the floor and the thighs should be parallel to the floor; the back of the chair should be close to the back and tilted at about 120 degrees. Oh, by the way, if you need to look at the computer screen for a long time, it is best to choose a high-backed chair to support the entire back.

The elephant leg chair is too high or too low, and the knee joint cannot form a right angle. Even if the sitting posture is correct, as long as the time is too long, our legs will suffer from varying degrees of edema. There is no way, who will let the flow go to them The blood supply is suppressed! If coupled with incorrect sitting postures such as crossed legs and uncomfortable chair heights, the swollen legs and painful knee joints will definitely become more serious. Correct sitting posture. If you want to keep your legs slim and healthy, you must remember to get up and move every half an hour. You don't need to do any special movements. Just "walk two steps" to effectively avoid edema.

The height of the chair should also be appropriate. When sitting, your legs should be at a ninety-degree angle and your feet should be flat on the ground. .

6. How much harm does radiation in daily life bring to us

In 1998, the World Health Organization listed the five major effects of electromagnetic radiation on the human body: 1. Electromagnetic radiation is a The main causes of vascular diseases, diabetes, and cancer mutations: 2. Electromagnetic radiation causes damage to the human reproductive system, nervous system, and immune system; 3. Electromagnetic radiation is a causative factor for miscarriage, infertility, teratology and other diseases in pregnant women; 4. Electromagnetic radiation Radiation directly affects children's development and skeletal development, leading to decreased vision, retinal detachment, and decreased liver hematopoietic function; 5. Electromagnetic radiation can cause decreased physiological functions, endocrine disorders, and menstrual disorders in women.

Professor Tian Dafang, an expert in building electrical design at the Chinese Academy of Sciences, told us that when the computer is running, the electromagnetic waves emitted by the main body of the chassis and the monitor will pollute the surrounding environment and be detrimental to health. The radiation amounts of each component of the computer are: keyboard 1000V/m, mouse 450V, 4n, screen 218V, fia, host 170V, 4no. Comparing the radiation amounts, you will find that the keyboard has the largest amount of radiation.

We must be vigilant. When sleeping in front of the computer during lunch break at work, never lie on the keyboard. At this time, remember to shut down the computer, not just turn off the screen. Because just turning off the screen cannot eliminate radiation (the radiation from the keyboard of a laptop is the same as that of a desktop computer).

Professor Tian Dafang said that computers with wireless Internet access will also have antenna radiation, and the keyboard is actually an antenna. Each key is covered with a vertical and horizontal grid, which itself forms an antenna. Each key is scanned by high-frequency electromagnetism at any time and can emit electromagnetic waves. People only pay attention to blocking the electromagnetic waves in the chassis and ignore the leakage of electromagnetic waves from the keyboard. Therefore, it is recommended to increase the shielding measures of the keyboard.

In fact, all daily household equipment that uses electricity will produce electromagnetic radiation. Whether it is harmful to the human body depends most on the amount of energy. According to the regulations of the International Radiation Protection Association and the International Labor Organization, the safe intensity of electromagnetic fields is 0.2-0.4 microtera (this is the safety limit of electromagnetic fields when exposed to computers for 24 hours). There is no harm to the human body below this intensity. Some specialized research institutions have tested the electromagnetic field strength of computers and found that the electromagnetic field intensity close to the fluorescent screen is 0.9, but about 5 cm away from the screen, the intensity is less than 0.1, and further away to 30 cm (this is the computer operator's the accustomed distance between the body and the screen), its intensity is almost unmeasurable.

Professor Feng Lida from the Immunization Center of the Naval General Hospital said: Regarding electromagnetic radiation, we must have a sense of self-protection and learn more about electromagnetic radiation. When computers are suspended from use, such as during a lunch break, it is best not to leave them in standby mode; the radiation generated by computer screens can cause dryness and dehydration of human skin and accelerate skin aging, so you should wash your face in time after use. Eat more carrots, bean sprouts, tomatoes, rape, kelp, cabbage, lean meat and other foods rich in vitamins A, C and protein to help regulate the body's electromagnetic field disorder and enhance the body's ability to resist electromagnetic radiation.

Pay attention to eye protection

Professor Feng also said that the impact of computers on human health is also manifested as vision syndrome. According to statistics, 75% of people who use computers for a long time will suffer from vision loss. Vision syndrome mainly manifests as temporary myopia, blurred vision of distant objects for several minutes or even hours after using the computer; eye fatigue, pain and fatigue on the forehead; blurred vision after operating the computer, and sometimes recurrence. Vision, sometimes the image of an object seems to remain in front of you even after you shift your gaze; eyes become dry or watery.

Computer operation is a task that requires considerable visual acuity. Reduces the secretion of lubricants and enzymes in the eye. The constantly changing and scrolling characters on the computer screen will irritate the eyes and cause certain damage to the eyes.

Generally speaking, if a person blinks less than 5 times per minute and lasts for a long time, it will cause dryness, fatigue, double vision, blurred vision and other symptoms. We should pay attention to protecting our eyesight and try to lower the brightness and contrast slightly so that it is not dazzling and comfortable to look at. After using the computer for about 30 minutes, take a break for a few minutes and look into the distance to relax the eye muscles that regulate vision. If you are using your computer at night, it is best to turn on an incandescent light next to it.

Prevent hand and neck and back diseases

Carpal tunnel syndrome of the hands and neck and back diseases are also common diseases among people who frequently use computers. Since people sit in front of computers all day long, repeated single movements require considerable static support due to small changes in amplitude. Being in this situation for a long time can easily cause local fatigue and burden on the musculoskeletal system. This causes some neuromuscular tissues to be in a tense state. If the wrist tension lasts for a long time, it will cause inflammation and pain in the tendons of the hands, wrists, arms and even shoulders, and sometimes the tendon sheaths and muscle tissues can be involved. Carpal tunnel syndrome develops. Due to long-term incorrect sitting posture, it is easy to cause cervical spondylosis.

To prevent carpal tunnel syndrome of the hands and neck and back diseases, the focus should be on creating a healthy working environment and correcting operating postures. For example, personal seats should be adjusted to an appropriate height so that people have enough space to stretch their legs and feet when sitting; do not sit or stand for too long; when sitting, the back should be straight and close to the back of the chair, and do not cross your feet. So as not to affect blood circulation; the computer keyboard should be facing you when typing. If it is placed sideways, it may cause excessive bending and tightness of the wrist: the height of the keyboard and the parallel distance from the human body should be adjusted to make you feel comfortable while typing. Location.

At the same time, every 30 minutes of operation, you should pause for a while to allow your hands and eyes to relax and rest properly