Most teenagers smoke out of curiosity and will become dependent on cigarettes over time. Teenagers are in the stage of growth and development, and smoking is very harmful to health. If they smoke in adolescence, the harm will be even greater. But many teenagers don't know much about the harm of smoking, so they will blindly follow suit. So, what's the harm of teenagers smoking?
1, affecting cardiovascular and cerebrovascular diseases.
Smoking will directly affect cardiovascular and cerebrovascular diseases, and it is also an important cause of hypertension, coronary heart disease and other diseases. Most patients with hypertension and coronary heart disease have a history of smoking. In the process of smoking, harmful substances such as nicotine and carbon monoxide in smoke will damage vascular endothelial cells, which will not only lead to the increase of cholesterol, but also lead to the contraction of peripheral blood vessels and coronary arteries, thus causing myocardial hypoxia, which is not conducive to the healthy growth of teenagers.
2, affect the respiratory tract
If teenagers have the habit of smoking, it will affect the respiratory tract, thus suffering from emphysema, chronic bronchitis, airway obstruction and other diseases. According to the survey, the probability of smokers suffering from respiratory diseases is 2~4 times that of non-smokers, so many adolescent patients often have symptoms such as cough, expectoration, dyspnea and even mild lung dysfunction after smoking.
3, affect intelligence
Smoking produces a lot of smoke, and the content of nitric oxide in the smoke is very high. When teenagers inhale these chemicals and combine with hemoglobin in the blood, they will form carboxyhemoglobin, which will make patients lose their oxygen-carrying function. Because people's brains have a great demand for oxygen, once hypoxia occurs, they will feel distracted and have a headache. Over time, their brains will be damaged and their intelligence will be affected, which will make students' learning ability decline.
4, leading to lung cancer
Teenagers are in the stage of growth and development, their physiological systems and organs are not fully developed, their resistance to harmful factors in the external environment is weak, and they are easy to absorb toxic substances, thus damaging their normal growth. If you have the habit of smoking in adolescence, it will have a great impact on the lungs over time, eventually leading to lung diseases and even lung cancer. In addition, the earlier you start smoking, the higher the probability and mortality of lung cancer. Smoking is harmful not only to teenagers, but also to the whole population. Smoking is very harmful. There are many toxic and harmful substances in tobacco, such as nicotine and carbon monoxide. There are other toxic and harmful substances. There are thousands of cigarette factories, and electronic cigarettes are also harmful. Smoking not only affects the lungs, but also affects the cardiovascular system and digestive tract, causing esophageal cancer and oral and pharyngeal tumors, which can cause a variety of tumors related to smoking, among which cardiovascular diseases are the most common, such as vascular stenosis and arteriosclerosis. The incidence of cardiovascular and cerebrovascular diseases in smokers is much higher, so smoking is a very bad habit. Teenagers smoke because they are young, and their addiction will be longer when they grow up, so it is necessary to put an end to teenagers smoking.