The harm of smoking is well known. As many as 2.5 million people die from smoking every year in the world, and smoking is the first killer of mankind. Consciously developing the personal hygiene habit of not smoking is not only beneficial to health, but also the embodiment of noble public health ethics. In the smoking room, especially in the environment with closed doors and windows in winter, the room is not only filled with carbon dioxide exhaled by human body, but also with carbon monoxide exhaled by smokers, which will make people feel headache, burnout and work efficiency decline. More seriously, the contents of tar and nicotine in the cold smoke exhaled by smokers are 1 times higher than those in the hot smoke inhaled by smokers, and benzopyrene is 2 times higher, carbon monoxide is 4 times higher and ammonia is 50 times higher.
The data show that the incidence of lung cancer, laryngeal cancer and coronary heart disease in long-term smokers is 10-20 times, 6- 10 times and 2-3 times higher than that in non-smokers respectively. The incidence of circulatory system is 3 times higher, and the incidence of tracheitis is 2-8 times higher. A survey was conducted in 1000 families, and it was found that children under 0/6 years old in smoking families/kloc-had more respiratory diseases than children in non-smoking families. Among children under 5 years old, 33.5% of non-smoking families have respiratory symptoms, and 44.5% of smoking families have respiratory symptoms.
Smoking harms others and yourself, so we should consciously develop good health habits of not smoking.
The main factors influencing teenagers' smoking behavior are as follows:
First, the influence of society. At present, smoking in our society is still very serious. In all kinds of public places and daily life, people always treat each other with cigarettes, as well as meetings, business, making friends, celebrations, funerals and so on. Cigarettes are indispensable everywhere. Teenagers grew up in an environment full of smoke, even in movies and TV series, there were scenes denouncing smoking. It can be said that smoking has become an unavoidable social environment, which has a subtle influence on teenagers' smoking behavior.
Second, the influence of family. A survey on adolescent smoking shows that most smokers have smokers in their families, mainly their fathers. Many students took their first cigarette out of their father's cigarette case. Few people started smoking their first cigarette with their father's encouragement. Middle school students often lack understanding of the harm of smoking. Some parents will unconsciously talk about the benefits of smoking in the process of smoking, and even induce young students to feel fresh about smoking.
Third, the influence in school. Many middle school students gradually learned to smoke cigarettes under the influence of classmates who can smoke. In addition, there is the influence of middle school teachers smoking, which can not be ignored.
Fourth, psychological self-satisfaction. Middle school students are in adolescence, with great psychological changes, and are easy to be curious about smoking. Especially when they feel that they have grown up and become a real man, they will think in their hearts: "Smoking is more imposing, more imposing, and this is the demeanor of a man!" This sense of independence and sense of adulthood makes middle school students easily involved in smoking.
Smoking not only affects the health of teenagers, but also affects their body and mind.
1 the influence of smoking on the healthy development of teenagers
The harm of smoking to teenagers' health has become very obvious in the first few weeks after smoking. The expiratory volume of teenagers in the first second after smoking is negatively correlated with the number of smokers. The longer you smoke, the less the adolescent's expiratory volume is compared with the normal expiratory volume. Even teenagers who smoke only one cigarette a day are more likely to suffer from cough, dyspnea and other diseases than teenagers who don't smoke, especially female teenagers.
2 the impact of smoking on the psychological development of adolescents
Smoking behavior also has obvious adverse effects on the psychological development of teenagers. The survey found that smoking behavior is related to teenagers' learning difficulties, poor academic performance, negative attitude towards school, depression and other problem behaviors. Such as drinking, stealing, fighting, truancy, gambling, petty theft, sexual behavior, etc., all have a very obvious relationship with smoking; Moreover, teenagers who smoke are more involved in unorganized social activities and less involved in extracurricular activities or organized activities in schools.
The smoke of tobacco not only has bad influence on human body, but also pollutes the environment. Fresh air, food and water are the most important factors for human life. From the point of view of air pollution, in places where there are many smokers, there are 5 billion smoke particles per milliliter of smoke, which is 50 thousand times that of dust particles in ordinary air. The concentration of carbon monoxide there exceeds the industrial allowable threshold by 840 times. The existence of a large amount of carbon monoxide makes people mentally exhausted, reduces labor efficiency, and the concentration of carboxyhemoglobin in blood can rise to moderate poisoning. Smoke contains many pathogenic substances, such as nicotine, nitrogen dioxide, hydrocyanic acid, acrolein, arsenic, lead and mercury. According to foreign analysis, the concentration of the above substances in flue gas far exceeds the industrial license threshold (Table 1), which is the highest concentration of workers exposed to harmful gases in advanced industrial countries. Cigarette smoke is more harmful to people than industrial polluted chemical gases.
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