What are the hazards of teenagers playing mobile phones?

What are the hazards of teenagers playing mobile phones? 1. The first thing that comes to mind when playing with a mobile phone is the damage to the eyes. Dr. Xu Haijia, an ophthalmologist, said in particular that young people under the age of 18, if they use mobile phones for a long time, will cause visual fatigue and myopia, and will also affect the development of their eyes;

2. Because playing mobile phone for a long time is a burying posture, of course, the injury to the shoulder and neck can not be ignored;

3. Long-term burying posture is also easy to cause cervical scoliosis, thus compressing nerves, and in severe cases, early bone degeneration and calcification may occur;

4. It is easy to get tenosynovitis by touching the screen of mobile phone for a long time.

What are the hazards of teenagers * * *? Moderate * * is beneficial.

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What's the harm of playing mobile phone while sleeping? Using eyes in dim light will cause pupils to dilate for a long time, block the circulation of liquid in the eyes, and easily lead to glaucoma and even permanent blindness. If you really want to play with your mobile phone, turn on a light that is not too bright. The low contrast sensitivity of eyes in the dark will increase the burden of eye accommodation system and further lead to deepening myopia. In order to reduce the eye load, it is best to adjust the contrast of the mobile phone screen to make the brightness and color as soft as possible. If possible, turn on a low-brightness background light in the room to ease the brightness gap between the screen and the background environment, which can protect your eyes.

What are the hazards of playing mobile phone at night? It's bad for your eyes. Playing mobile phones at night will make people habitually insomnia and rely more on mobile phones.

Teenagers * * *, what are the hazards? Don't harm your health if you are not a husband and wife. When you get married, learn more while you are young and have more sex. You can protect your family and stay in the temple in the future.

What are the hazards of adolescent drinking? Teenagers are in the period of growth and development, and the development of various tissues and organs is not perfect. Drinking alcohol will bring serious harm to normal physiological function and development. Scientists' experiments have proved that alcohol will reduce the normal function of straight organs, and if you drink alcohol regularly, it will delay the sexual maturity age by 2 to 3 years.

Harm of drinking alcohol

In our daily life, we often drink beer, wine and white wine. The source, brewing technology and alcohol content of all kinds of wines are different. Alcohol usually refers to the percentage of alcohol content in wine (by volume), such as Beijing beer with 5.4% alcohol and wine with about11-kloc-0/6% alcohol, which is usually called11-kloc-0/6%.

Article 7 of the Dietary Guidelines for China Residents is "Drinking should be * * *", and there is a paragraph explaining the harm of excessive drinking. Drinking a small amount of low-alcohol wine is not necessarily harmful, but drinking too much or even drinking too much is definitely harmful. So what can I drink? How to limit alcohol consumption?

A large number of data in epidemiological studies show that if the daily alcohol consumption does not exceed 24 grams of ethanol, which is equivalent to 540 ml of beer, 200 ml of fruit wine and 60 ml of 40-degree liquor, the risk will be reduced.

Long-term drinking will lead to a variety of nutrient deficiencies in the body. Wine is one of the foods with pure heat energy. Can be decomposed in the body to produce energy. However, it does not contain any nutrients. Excessive drinking first reduces the intake of other foods containing many important nutrients (such as protein, vitamins and minerals). Secondly, it can reduce appetite, reduce food intake, and damage intestinal mucosa for a long time, affecting intestinal absorption of nutrients, which can lead to a variety of nutritional deficiencies.

The alcohol in wine has a direct toxic effect on the tissues and organs of the body, and the organ most sensitive to alcohol is the liver. Excessive drinking will damage liver cells and interfere with the normal metabolism of the liver, which will lead to alcoholic hepatitis and cirrhosis.

Excessive drinking affects fat metabolism. Ethanol slows down the oxidation of fatty acids, which may be beneficial to the storage of dietary lipids, increase the synthesis of liver fat, increase the content of triglycerides in serum and increase the possibility of triglycerides.

In addition, population epidemiological studies show that long-term excessive drinking will increase the risk of hypertension and stroke. Alcoholism can also lead to violent accidents and endanger personal health and social security.

Recently, people often talk about the beneficial effects of fruit wine. A report in France found that the incidence of coronary heart disease in some drinking areas is lower than that in other areas. However, the reduction of the risk of heart disease cannot be attributed to some ingredients in red wine, because in areas with high consumption of French red wine, vegetables and fruits are also consumed more, and their antioxidant capacity is higher. These data show that the lifestyle of people who drink fruit wine (such as less smoking and high consumption of vegetables and fruits) leads to a decrease in the risk of cardiovascular disease.

To sum up, drinking alcohol has advantages and disadvantages to human health. Drinking a small amount of low-alcohol wine has certain benefits, but drinking a large amount for a long time is harmful. Especially teenagers and pregnant women. Teenagers are in the stage of growth and development and are more sensitive to the harm of alcohol. So teenagers can't drink. The harm of alcohol to pregnant women affects fetal development and even induces fetal congenital malformation, so pregnant women are absolutely forbidden to drink alcohol.

Excessive drinking: the harm is not shallow

Although "no wine, no table", at the same time, wine is also "intestinal toxicity", and excessive drinking brings a lot of harm. Every year, I don't know how many people have accidents because of drinking, how many people have ruined their lives, and how much health has disappeared between bottles and cans.

Heartbreaking, excessive drinking breeds tragedy.

According to a statistical data of Peking University Institute of Mental Health, the number of drinkers in China has been on the rise in recent years. At present, the drinking rates of men and women in China are 84. 1% and 29.3% respectively, of which men 16. 1% and women 2.5% drink alcohol every day. 1982, the incidence of alcohol dependence in China was only 0. 16‰, which was more than three times that of 1990, and the alcoholics were younger and the proportion of women was increasing.

According to a set of data from the World Health Organization, the mortality and morbidity caused by alcohol are the sum of measles and malaria, which is also higher than that caused by smoking. In China, 1 14 100 people die of alcoholism every year, accounting for1.3% of the total mortality; 2.737 million people are disabled, accounting for 3.0% of the total disability rate.

Speaking of the tragedy caused by drinking, Professor Qu Yao, director of Shanghai Hepatology Research Center, told the reporter a story: A middle-aged patient with acute icteric hepatitis just returned to normal was discharged from the hospital, which coincided with the continuous wedding banquets during the Spring Festival. At first, he could still remember the doctor's repeated instructions when he was discharged from the hospital, and he didn't touch a drop of wine, no matter who advised him. But at a special dinner table, a close friend asked him what he smelled. He finally couldn't resist the temptation of Maotai, thinking that he would be fine if he only drank a small cup and tasted something new! But the day after drinking this cup of wine, he found that his urine was yellow, weak and disgusting ... It was this cup of wine that caused his hepatitis to recur and quickly developed into acute severe hepatitis, and eventually he lost his life because of ineffective rescue.

Excessive drinking not only leads to countless tragic events, but also seriously affects the image of individuals and even countries. Former Russian President Yeltsin is one of them.

It is said that one day in September, 1994, Yeltsin, then Russian President, flew back to Moscow from Washington and was scheduled to have a 40-minute meeting with Irish Prime Minister Reynolds. The day before he left Washington, US President Bill Clinton hosted a banquet for him. Although there is no wine on the table, there is everything in it. Yeltsin only ate a small piece of meat, but raised his glasses frequently, and the cups bottomed out. After the wine reached the top, Yeltsin talked a lot, saying a lot of rude words and "three-level jokes." The translator racked his brains to "purify" the dirty words he said. When the plane approached the Shannon airport, Yeltsin woke up, and his wife handed him a shirt, but his buttoned hand never listened. The accompanying officials saw something bad. After some discussion, they decided to let the Deputy Prime Minister have a brief meeting with Reynolds on behalf of the President. When the Vice Premier got off the plane, Yeltsin shed tears and said to the accompanying officials in shame, "You have humiliated me in front of the world interface."

Excessive drinking is harmful to health.

"If you drink too much, it is the liver that hurts the most." Professor Qu Yao pointed out: "The core chemical of wine is alcohol (namely ethanol), and drunkenness is actually alcoholism. Because more than 90% of alcohol enters the body through the liver, its metabolites and the metabolic disorder of hepatocytes caused by them are the main causes of alcoholic liver injury. According to research, normal people drink 40 grams to 80 grams a day on average, and alcoholic liver disease can occur in 10 years, such as cirrhosis in 160 grams a day and 8 ~ 10 years on average. What a sensational figure! "

Professor Li Youming, vice president of the First Affiliated Hospital of Zhejiang University School of Medicine, told the reporter that he led a scientific research team to make a survey on the alcohol intake of 20,000 people in urban and rural areas of Zhejiang Province. The results show that the prevalence rate of alcoholic liver disease in this population is 4.34%, and 48% of people who drink more than 40 grams a day for more than five years will suffer from alcoholic liver disease in different degrees. Alcoholic liver disease basically occurs in drinkers who have been drinking for more than 5 years and their total alcohol intake exceeds 100 kg.

Studies have shown that excessive drinking is more than twice as high as non-excessive drinking, the incidence of thyroid cancer increases by 30% ~ 150%, and the incidence of facial cancer increases by 20% ~ 70%. The risk of breast cancer in women increases by 20% ~ 60%. Among patients with esophageal cancer, 60% drink excessively, and only 2% don't drink. Patients with hepatitis B are at greater risk of liver cancer. If they drink alcohol or drink too much, the incidence of liver cancer will increase greatly.

In addition, excessive drinking will also have adverse effects on other parts of the body:

Drinking more alcohol in the brain has serious damage to memory, attention, judgment, function and emotional response. Drinking too much can lead to slurred speech, blurred vision and loss of balance.

Alcohol in reproductive organs will cause the decline of male quality; For pregnant women, even a small amount of alcohol will increase the risk of physical defects of unborn babies.

People who drink a lot of alcohol in the heart will develop cardiomyopathy, which can lead to the weakening and damage of muscle tissue of the heart, while the proliferation of fibrous tissue will seriously affect the function of the heart.

A large amount of alcohol in the stomach will cause discomfort symptoms of acute gastritis, and continuous intake of alcohol will lead to more serious chronic gastritis.

There is no doubt that smoking among teenagers is very harmful. First of all, smoking is harmful to everyone. The main hazards are: 1, the lungs are filled with smoke for a long time, and the alveoli lose elasticity to form emphysema;

2. There are 4,000 kinds of toxic substances in cigarettes, and long-term accumulation in the lungs will inevitably lead to lung cancer;

3. Long-term smoking will inevitably lead to impotence and weakness, affecting the quality of life and the relationship between husband and wife;

4. Long-term smoking leads to poor energy, forgetfulness and constant exhaustion;

5, smoking causes teeth to be very black and yellow, which affects personal image;

6, smoking leads to periodontitis, full of stench, making people retreat;

7, smoking is out-and-out money to buy sin, but also to quit;

8. It is harmful to family members, making them smoke second-hand smoke affects their health and feels guilty;

9, smoking addiction is unbearable, smoking everywhere, the smell of smoke is unpleasant and annoying;

1 1 Smoking everywhere is easy to cause fire, and smoking is prohibited everywhere; Nearly one-fifth of the fires in the world are caused by smoking.

12 smoking is prohibited in the office experimental site, and smoke and dust will lead to short circuit of devices and promote aging;

13 smokers often compare with others, and spending money is boring.

14 cigarettes are chronic drugs, and long-term smoking is equal to chronic suicide;

15 Long-term smoking leads to bronchial inflammation, and coughing every day is very uncomfortable, with too much phlegm, which is annoying;

Smoking 16 often burns clothes and bedding, and even causes fire;

17 long-term smoking has a great influence on people's emotions, which will make people lose their temper for no reason;

18 The consequences of smoking will inevitably affect the quality of life and shorten the life time; Brother smokes not cigarettes, but his own life;

19 the current situation does not allow you to continue smoking, just don't bring yourself to ruin;

There is no doubt that long-term smoking has a serious impact on the next generation;

2 1 causes frequent chest tightness and discomfort, and it is difficult to fall asleep when sleeping with your arms above your head;

Long-term smoking can affect insulin secretion, increase blood sugar and blood lipid, and lead to hunger;

Smoking seriously affects a person's willpower, resulting in many things can not be firmly implemented;

It's really expensive to smoke expensive cigarettes in front of colleagues and friends.

Friends should give each other cigarettes, which greatly increases the smoking volume and greatly reduces the life span;

Smoking is forbidden in many public places, and smoking will be discriminated against by personality;

Usually, you don't eat or drink, but smoking costs a lot of money and harms your health. Is there something wrong with my head?

People who smoke are affected by 4000 kinds of poisons, and their faces, mouth, teeth and eyes will be damaged, which will seriously affect their personal image. It is often said that this person is a heavy smoker at first sight;

Self-smoking may also drive family members to smoke, which will have a worse impact on the next generation;

I know that smoking is a bad habit, but I can't give it up for a long time. Really incompetent and spineless;

3 1 Often spit black phlegm and yellow phlegm, and the lungs are often uncomfortable. It is estimated that the lungs have turned black;

The result of long-term smoking leads to serious snoring, which seriously affects the sleep quality of family members and themselves;

Pollution the air in your bedroom and the environment in your office;

Long-term smoking can lead to stroke and hemiplegia. I am imagining the walking posture of hemiplegia and stroke;

Long-term smoking can increase the incidence of various chronic diseases;

36 Long-term smoking leads to hearing loss and even deafness;

37 long-term smoking leads to low work efficiency, often in a daze, not knowing what to do;

Smokers completely lose themselves and are completely controlled by a small cigarette;

Smoking is stressful and harmful to the heart, which is the engine of life;

Sometimes smoking is very uncomfortable, but I still want to smoke, which is even more uncomfortable and more painful;

4 1 Long-term smoking leads to rough, dark yellow, aging, wrinkles and inelastic panels;

Long-term smoking has a great influence on the stomach and intestines, affecting the pH of the stomach and intestines, which will inevitably lead to ulcers;

Smoking too much leads to dizziness and even fainting, which is my personal experience.

Smoking often leads to impatience and can't handle all kinds of things normally;

Smoking often leads to insomnia, which seriously affects sleep and directly affects the quality of work the next day;

Smoking makes the effect of physical exercise efforts disappear completely;

47 Long-term smoking leads to decreased vision or even blindness;

Smoking can easily lead to blood coagulation and coronary heart disease;

The probability of sudden death after long-term smoking is extremely high;

Smoking is prone to accidental injuries, and wounds are not easy to heal;

Smoking 5 1 can cause abnormal ventricular fibrillation and atrial fibrillation. I already have this problem, so I must pay close attention to it.

Smoking causes diabetes. I have a family history in this field and want to quit smoking.

Smoking harms others and yourself, brings trouble to family members and harms future generations. If you hate someone, ask him to smoke.

Long-term smoking will inevitably lead to mental retardation, Alzheimer's disease and depression;

Long-term smoking is easy to cause pelvic inflammatory disease and slow healing of bone injury;

Long-term smoking leads to decreased immunity and susceptibility to various diseases;

Long-term smoking can lead to cataracts and even blindness;

A large number of long-term smoking can lead to toxemia, which is directly fatal and incurable;

Smoking will increase the probability of meningitis infection;

Smoking makes people weak-willed, unable to persist in exercise and unable to persevere in doing things;

6 1 Long-term smokers can't have strong bodies;

There are all kinds of carcinogenic reflective substances in cigarettes, which are difficult to excrete;

Long-term smoking can lead to blood hypoxia and arteriosclerosis;

Smoking destroys a lot of vitamin C in the body, which will lead to malnutrition and produce toxic substances.

Smoking can lead to laryngeal cancer and esophageal cancer;

66. Tobacco production destroys a lot of cultivated land, seizes resources and does things harmful to human beings, and those who do so will be punished by the devil;

Smoking anywhere may be rude, offensive and not worth it;

As a gift, cigarettes cost thousands of dollars, which really corrupts the social atmosphere and my brother despises it.

Long-term smoking can lead to poor bladder control and urinary incontinence;

Smoking causes more deaths than any disease or plague. I used to be very afraid of cancer, but smoking is cancer, Depth Charge.

7 1 Long-term smoking often leads to dry mouth;

Heavy smoking can lead to asthma and rapid heartbeat;

Long-term smoking can lead to anorexia;

Smoking distracts people and increases the probability of car accidents. According to the survey, the probability of traffic accidents between smokers and non-smokers is 5:1;

Long-term smoking is very harmful to the kidneys and will lead to renal failure;

Smoking can damage teeth and gums, leading to oral ulcers;

People who smoke for a long time are prone to mental illness;

Long-term smoking has a high probability of causing sinusitis and even sinusitis cancer;

A smoker always makes excuses because he is a weak person.

Long-term smoking leads to fragile bones and osteoporosis. Old smokers may break a few bones when they fall, and then lie in bed until they die.

8 1 because smoking destroys vitamin absorption, smokers are prone to psoriasis;

People who smoke often have cold hands and feet, because blood vessels become narrower and thinner, and blood does not flow smoothly throughout the body;

Smoking will obviously reduce other effective components and functions;

Smoking causes family conflicts, and such things and contradictions abound;

Cigarettes contain a lot of tar, which is used for paving roads and contains harmful substances such as arsenic, formaldehyde, DDT and acetone.

Smoking increases the burden on the liver, increases the concentration of blood lipids, and leads to blood vessel blockage;

Smoking a pack of cigarettes every day is equivalent to losing 200CC of blood every day.

One cigarette can kill a mouse, and 20 cigarettes can kill a cow;

Carbon monoxide in smoke reduces the ability of red blood cells to deliver oxygen to the whole body, leading to weakness.

Pregnant women who smoke 15 cigarettes a day are twice as likely to have an abortion as non-smoking women.

9 1 Women who smoke tend to give birth to premature babies or weak babies, and the infant mortality rate of women who smoke postpartum is about 30% higher than that of women who don't smoke.

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The lethal dose of cigarettes is 50 -70 mg, which is equivalent to the nicotine content of 20-25 cigarettes. If nicotine in a cigar or three cigarettes is injected into human veins, it will kill people in 3-5 minutes;

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Smoking before pregnancy will affect the healthy development of * * * and eggs, and even lead to abnormalities of * * * and eggs; After pregnancy, the fetus in pregnant women is prone to intrauterine growth malformation and slow growth; After the baby is born, there will be poor memory or memory disorder, which will affect the baby's normal development and future study.

Smoking is more harmful to drink juice rich in vitamin C, which may lead to harmful substances in the body;

The risk of ectopic pregnancy in smoking women is 40% higher than that in non-smoking women.

Women who smoke are 50% more likely to develop cervical cancer than women who don't smoke.

Women who smoke are 2.7 times more likely to have infertility than women who don't smoke.

Women who smoke for more than 20 years have an increased risk of breast cancer by 30%;

Women who smoke are almost twice as likely to develop early-onset rheumatoid arthritis as non-smokers.

What are the hazards of playing mobile phone while charging? There are different opinions about whether using mobile phone while charging is harmful to mobile phone or battery. I am a student majoring in electronics, and I have consulted my predecessors. Now let me explain the principle to you.

As we all know, mobile phones are also electronic products. In all electronic products, there is an electronic component or protection circuit to protect important internal components, such as fuses. When the external current is too large or short-circuited, the fuse will blow, thus cutting off the contact with the bad power supply and protecting its electronic products;

Or because the internal electronic components are damaged due to quality problems, resulting in short circuit, the protection circuit will cut off the peripheral circuit of the components and protect the internal electronic components.

This kind of circuit is only available in high-end electronic products. But mobile phones are precision electronic products. The fuse is not installed on its circuit board, so only the protection circuit mentioned just now is left. This kind of circuit can only be owned by mobile phones produced by regular manufacturers, and can only be owned by parallel imports.

If it's a fake and shoddy product, it's another matter, the protection circuit of mobile phone. Mainly the most important IC and CPU, they will be given limited working current when designing. The current is generated by data information. If the data information conflicts or suddenly increases, the current supplied to IC and CPU must be very large, and the protection circuit will cut off the power supply. So it's natural to shut down and restart. But downtime sometimes comes at the expense of lost data.

What's the harm of playing while charging?

That depends on the battery. The regular battery has a protection circuit, and the output is very stable, which is designed according to the internal power limit of the mobile phone. I don't have to tell you those lies. Therefore, it is relatively safe for ordinary batteries to play while charging, but when the battery is not fully charged, it will generate a lot of heat. There is a lot of current activity at this time. So mobile phones, batteries and chargers are overloaded. It is recommended to fully charge first and play while rushing. The battery is dead, and forced charging is fatal to the battery. Playing like this without full charge will affect the protection circuit and battery of the mobile phone.