Smoking will affect people's attention. Some people think that smoking can refresh the mind, eliminate fatigue and inspire, which is totally unreasonable. Experiments show that smoking seriously affects people's intelligence and memory, thus reducing the efficiency of work and study.
Smoking is harmful to nothing. 53% of children in China smoke passively, which is even more harmful and prone to pneumonia, bronchitis, severe asthma and other diseases. If you continue to smoke, your child's intellectual development, families and individuals who smoke will pay a huge price.
3. 38 kinds of toxic chemicals are released when cigarettes burn, among which tar, carbon monoxide, nicotine, dioxins and irritating smoke are the main harmful components. Tar is harmful to the mouth, throat, trachea and lungs. Tar in tobacco smoke is deposited on lung villi, which destroys the function of villi, increases phlegm and causes chronic bronchial diseases, such as tracheitis, emphysema, pulmonary heart disease and lung cancer.
According to statistics, the proportion of smokers suffering from lung disease after 60 years old is 74%, while the proportion of non-smokers suffering from lung disease after 60 years old is only 4%, which is a shocking figure.
4. Carbon monoxide in cigarettes will reduce the oxygen content in the blood and cause related diseases such as hypertension. Smoking will contract coronary artery, reduce or block supply, and lead to myocardial infarction. Smoking can increase adrenaline, make the heart beat faster, increase the heart load, affect blood circulation, and lead to more than 20 diseases such as cardiovascular and cerebrovascular diseases, diabetes, sudden death syndrome, decreased respiratory function and stroke.
5. Smoking not only harms smokers' own health, but also second-hand smoke and third-hand smoke, especially the particles contained in second-hand smoke.
Because these particles can still stay in the air for several hours after quitting smoking, they can be inhaled by people or mixed with the decay products of radon gas, which will cause great harm to human health after inhalation. At the same time, because the particles in the smoke will stay in the air for several hours, this toxic mixture of third-hand smoke contains carcinogens, which is a potential health threat to non-smokers who are exposed to this substance.
Baidu encyclopedia-smoking
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