How about smoking?

Smoking is very harmful to people's health, as follows: tobacco smoke contains at least three dangerous chemicals: tar, nicotine and carbon monoxide. Tar is a mixture of several substances, which will be concentrated into a viscous substance in the lungs. Nicotine is an addictive drug, which is absorbed by the lungs and mainly acts on the nervous system. Carbon monoxide reduce that ability of red blood cells to deliver oxygen to the whole body. A person who smokes/kloc-0.5 to 20 cigarettes a day is four times more likely to develop lung cancer, oral cancer or laryngeal cancer and die than a non-smoker. The mortality rate of esophageal cancer is four times higher than that of non-smokers. The risk of dying from bladder cancer is twice as high; The risk of dying of heart disease is twice as high. Smoking is the main cause of chronic bronchitis and emphysema, and chronic lung disease itself will increase the risk of pneumonia and heart disease, and smoking will also increase the risk of hypertension. The smoke of mouth and throat smoke (especially the tar contained in it) is a carcinogen-that is, it can cause cancer in the tissues it contacts, so any part of the smoker's respiratory tract (including mouth and throat) may cause cancer. Nicotine in the heart and arteries can make the heart beat faster and blood pressure rise. Tobacco smoke may be due to carbon monoxide, which seems to promote the accumulation of atherosclerosis. This condition is one of the causes of many heart diseases. Heavy smokers are much more likely to die of a heart attack than non-smokers. Toxic substances in cigarette smoke There are many different substances in the smoke of cigarettes, cigars and pipes. There are three most harmful substances, namely tar, nicotine and carbon monoxide, which are responsible for the premature death of many smokers. Smoking women taking birth control pills will increase the risk of taking pregnancy drugs. Pregnant women who smoke 65,438+05 to 20 cigarettes a day are twice as likely to have an abortion as women who don't smoke, and are more likely to give birth to premature babies or weak children. The mortality rate of babies born to smoking women after childbirth is about 30% higher than that of babies born to non-smoking women. There is also the so-called "clean smoking", or second-hand smoke, which will increase the lung cancer of non-smokers. Therefore, it may not be helpful to switch to "light" cigarettes. A large number of habitual smokers usually develop the habit of taking a deep breath and increasing the number of cigarettes when switching to light cigarettes. Most smokers in the esophagus like to swallow a certain amount of cigarettes, so the digestive tract (especially the esophagus and pharynx) is at risk of cancer. Fine hairs arranged on the airway of the lung usually exclude hydrogen foreign bodies from the lung tissue. These villi will constantly sweep the particles in the lungs into phlegm or mucus and excrete them. In addition to causing cancer, the chemicals in tobacco smoke will gradually destroy some villi and increase mucus secretion, so there are chronic diseases in the lungs and bronchitis is also prone to infection. Obviously, the "smoker's cough" is due to the impairment of the mechanical efficiency of lung cleaning, so the amount of sputum has increased. Bladder cancer may be caused by inhaling carcinogenic chemicals contained in tar, which are absorbed by blood and then sampled in urine. The harm of smoking! ! ! Tobacco smoke contains at least three dangerous chemicals: tar, nicotine and carbon monoxide. Tar is a mixture of several substances, which will be concentrated into a viscous substance in the lungs. Nicotine is an addictive drug, which is absorbed by the lungs and mainly acts on the nervous system. Carbon monoxide reduce that ability of red blood cells to deliver oxygen to the whole body. A person who smokes/kloc-0.5 to 20 cigarettes a day is four times more likely to develop lung cancer, oral cancer or laryngeal cancer and die than a non-smoker. The mortality rate of esophageal cancer is four times higher than that of non-smokers. The risk of dying from bladder cancer is twice as high; The risk of dying of heart disease is twice as high. Smoking is the main cause of chronic bronchitis and emphysema, and chronic lung disease itself will increase the risk of pneumonia and heart disease, and smoking will also increase the risk of hypertension. The smoke of mouth and throat smoke (especially the tar contained in it) is a carcinogen-that is, it can cause cancer in the tissues it contacts, so any part of the smoker's respiratory tract (including mouth and throat) may cause cancer. Nicotine in the heart and arteries can make the heart beat faster and blood pressure rise. Tobacco smoke may be due to carbon monoxide, which seems to promote the accumulation of atherosclerosis. This condition is one of the causes of many heart diseases. Heavy smokers are much more likely to die of a heart attack than non-smokers. Toxic substances in cigarette smoke There are many different substances in the smoke of cigarettes, cigars and pipes. There are three most harmful substances, namely tar, nicotine and carbon monoxide, which are responsible for the premature death of many smokers. Smoking women taking birth control pills will increase the risk of taking pregnancy drugs. Pregnant women who smoke 65,438+05 to 20 cigarettes a day are twice as likely to have an abortion as women who don't smoke, and are more likely to give birth to premature babies or weak children. The mortality rate of babies born to smoking women after childbirth is about 30% higher than that of babies born to non-smoking women. There is also the so-called "clean smoking", or second-hand smoke, which will increase the lung cancer of non-smokers. Therefore, it may not be helpful to switch to "light" cigarettes. A large number of habitual smokers usually develop the habit of taking a deep breath and increasing the number of cigarettes when switching to light cigarettes. Most smokers in the esophagus like to swallow a certain amount of cigarettes, so the digestive tract (especially the esophagus and pharynx) is at risk of cancer. Fine hairs arranged on the airway of the lung usually exclude hydrogen foreign bodies from the lung tissue. These villi will constantly sweep the particles in the lungs into phlegm or mucus and excrete them. In addition to causing cancer, the chemicals in tobacco smoke will gradually destroy some villi and increase mucus secretion, so there are chronic diseases in the lungs and bronchitis is also prone to infection. Obviously, the "smoker's cough" is due to the impairment of the mechanical efficiency of lung cleaning, so the amount of sputum has increased. Bladder cancer may be caused by inhaling carcinogenic chemicals contained in tar, which are absorbed by blood and then sampled in urine.