Is smoking harmful to human body?

Harm of smoking to health Smoking is an unhealthy living habit. The harm of smoking to human body is as follows: 1 Brain smoking can cause various brain diseases, reduce oxygen and blood circulation in the brain, lead to cerebral vascular bleeding and occlusion, and lead to paralysis, mental decline and stroke. The cause of stroke is that smoking leads to cerebral vasospasm, which makes blood coagulation easier. Smokers are twice as likely to have a stroke as nonsmokers. Smoking in the throat can cause laryngeal cancer. Laryngeal cancer patients are mostly male. Smoking can cause fat accumulation and vascular occlusion on the heart and blood vessels, making smokers prone to coronary heart disease. The death rate of heart disease caused by smoking accounts for 25% of the total. The prevalence of smokers over 50 has doubled. The prevalence rate of smokers under 50 years old increased 9 times, reaching 14 times. Smoking will constrict blood vessels, slow down the circulation of blood and oxygen, and eventually lead to thickening of blood vessel walls, leading to coronary heart disease and stroke. Smoking will completely block the blood circulation of hands and feet, leading to amputation. Smoking in the lungs can cause lung cancer. 90% of the total mortality rate is caused by smoking. The prevalence rate of a person who smokes ten cigarettes a day is ten times that of a non-smoker. Damaged cells can't return to normal. The initial symptoms will not be found until the cancer cells spread to blood vessels and other organs. Smoking can also cause emphysema, and toxic substances accumulated in the bronchi of the lungs will hinder the normal exhalation of the air inhaled by the human body, make lung cells expand or rupture, and cause patients to have difficulty breathing. For people with gastrointestinal diseases, smoking is enough to aggravate gastrointestinal diseases. People with gastric ulcer or duodenal ulcer will slow down the healing of ulcer and even become chronic diseases. Smoking can stimulate the nervous system, accelerate the secretion of saliva and gastric juice, make the gastrointestinal tract often tense, and lead to the loss of appetite of smokers. In addition, nicotine can also contract gastrointestinal mucosal blood vessels and reduce appetite. The rehabilitation period of smokers' fractures is longer than that of non-smokers. It may be that nicotine and carbon monoxide contained in cigarettes slow down the process of bone regeneration. Nicotine constricts blood vessels and reduces blood flow to new bones. The carbon monoxide inhaled during smoking also reduces the speed at which oxygen enters the body. Smoking can lead to osteitis and back pain. Smoking more than ten cigarettes a day will double the prevalence of periostitis. Most people with severe back pain are addicted to smoking, because smoking will reduce the blood flow of the articular disc and the articular disc will degenerate early. Smoking can lead to arthritis. Smoking a pack of cigarettes a day will increase the prevalence rate by 50%. Female smokers are more likely to suffer from fractures and arthropathy after menopause. Smoking will lead to faster bone loss. Women smoke a pack of cigarettes every day from adolescence to menopause, and their bones are 5% to 10% less than those of non-smokers. When smokers enter menopause, the bone loss rate is faster. Smoking can interfere with estrogen, which is an important hormone in bone development. 7. Bronchial smoking is the main pathogenic factor leading to chronic obstructive tracheal disease. Because smoking can cause the cilia of bronchial epithelial cells to become shorter and irregular, cause dyskinesia, reduce local resistance and be susceptible to infection. Smoking in the liver will increase the burden on the liver. Regular smoking will affect the lipid metabolism of the liver, increase blood lipid, decrease benign cholesterol and increase malignant cholesterol. This has caused the burden of detoxification function of the liver to increase. Intestinal smoking can lead to colon cancer. The risk of this kind of cancer is directly proportional to the amount of smoking. Research shows that although quitting smoking can reduce the risk of heart disease, lung cancer and other diseases, the risk of colon cancer is still high. 10 eye smoking can cause cataracts and affect vision. Research shows that there are twice as many cataract patients who smoke more than one pack a day as those who never smoke. 1 1 Secondhand smoke is a kind of mixed smoke when a cigarette, pipe or cigar burns or exhales when a smoker smokes. Secondhand smoke is the most common pollutant in many smoking places. Smoke emitted during smoking can release more than 4,000 kinds of gases and particles, most of which are very strong irritants, and at least 40 of them can cause cancer in humans or animals. After smokers quit smoking, these particles can still stay in the air for several hours, can be inhaled by other non-smokers, and may be mixed with the decay products of radon gas, causing great harm to human health. When smoking harms smokers' own health, second-hand smoke will also affect non-smokers. In addition to irritating eyes, nose and throat, it will significantly increase the risk of lung cancer and heart disease in non-smokers. If children live with some smokers, their respiratory system will be more susceptible to infection. Other symptoms include increased cough, asthma, excessive phlegm, impaired lung function and slow lung development. First of all, we should realize the benefits of quitting smoking: the benefits of quitting smoking to the heart, blood pressure and blood system will only show up in one day. After quitting smoking 1 year, the excess risk of coronary heart disease is reduced by half compared with that of continuous smokers. After quitting smoking for 5 years-15 years, the risk of stroke dropped to the level of never smokers. After quitting smoking 10 years, the risk of lung cancer is reduced by half compared with those who continue to smoke. The risk of oral cancer, laryngeal cancer, esophageal cancer, bladder cancer, renal cancer and pancreatic cancer is reduced, and the risk of gastric ulcer is reduced. After quitting smoking 15 years, the risk of coronary heart disease is similar to that of never smokers. The overall risk of death has returned to the level of never-smokers. Therefore, it is never too late to quit smoking, and it is best to quit smoking before your health is seriously damaged. How to quit smoking (1): 1. Quit smoking from now on, the method of completely quitting smoking or gradually reducing the number of smoking will generally be successful in 3 ~ 4 months. 2. Throw away all cigarettes, lighters, matches and ashtrays. 3. Avoid places or activities where you are used to smoking. Drink water, eat fruit or take a walk after meals to get rid of the idea of smoking a cigarette after meals. When the addiction comes, you should take a deep breath immediately, or chew sugar-free gum, and avoid replacing cigarettes with snacks, otherwise your blood sugar will rise and your body will be overweight. 6. Resolutely refuse the temptation of cigarettes and always remind yourself that another cigarette is enough to make the plan to quit smoking go up in smoke. How to spend the first 5 days of quitting smoking? Provide the following seven ways to quit smoking (2): (l) Drink 6-8 glasses of water between meals to promote nicotine excretion. (2) Take a warm bath every day. If you can't help smoking, you can take a shower immediately. (3) Quit smoking for five days, have a full rest and live a regular life. (4) Take an outdoor walk after dinner and take a deep breath 15-30 minutes. (5) Drink milk, fresh fruit juice and cereal drinks instead of stimulating drinks. (6) Try to avoid eating poultry food, fried food, candy and dessert. (7) you can eat a variety of vitamin B groups, which can calm your nerves and eliminate nicotine. The doctor pointed out that after the first five days, you can follow the following methods (1) to maintain the "success" of quitting smoking. Brush your teeth or rinse your mouth after meals, wear clean clothes and don't smoke. (2) Replace the habit of smoking with a pen or pencil. (3) Stay in the library or other places where smoking is not allowed most of the time. (4) Avoid going to bars and attending banquets, and avoid being with heavy smokers. (5) Buy yourself a gift with the money saved by not smoking. (6) Prepare to quit the habit of wanting to smoke within 2-3 weeks. It is no problem to quit smoking by combining the two. Perseverance is very important, hehe. In addition, there is a smoking cessation clinic with limited coverage. Look at the introduction: smokers have to go through several stages to quit smoking: before considering it, consider quitting smoking, prepare to quit smoking, take action to quit smoking, maintain the state of quitting smoking or relapse. Many people may repeat the above process before quitting smoking completely, but some people report that they find it easier to quit smoking than they thought. Different stages need different suggestions and treatment methods. At present, there are some ways to help quit smoking. Social support provided by doctors; Skills training; Nicotine replacement therapy using nicotine patch and nicotine gum, as well as drug therapy, are all effective smoking cessation treatments. If these methods are used together, the effect will be more obvious. Most smokers rely on tobacco. When they try to quit smoking, they will have strong withdrawal symptoms such as addiction, irritability, inattention and irritability. Nicotine replacement therapy is an economical and effective treatment method, which can more than double the smoking cessation rate by reducing smoking addiction. Its effect has been confirmed by short-term intervention, sales as over-the-counter drugs and smoking cessation clinics. Nicotine replacement therapy, as an effective public health measure to help quit smoking, should be paid enough attention to to promote most smokers to quit smoking. Quitting smoking is the only and most effective health decision for middle-aged and elderly people in China to improve their health. For love, for family, for the health of yourself and others, be strong-willed and overcome all difficulties. Persistence is victory, hehe.