What are the harms of smoking among teenagers?

Many teenagers learn to smoke in school. When they see others smoking, they will also smoke. Smoking is also very addictive. If you smoke, your lungs will definitely be damaged unconsciously. Lung damage can easily cause the lungs to turn black, and the damage to the lungs will gradually increase. Smoking is very harmful to the body of teenagers, but it is difficult for teenagers to quit smoking. So what are the harms of smoking for teenagers?

The harm of smoking to teenagers:

Smoking is very harmful to the health of growing adolescents, and has a certain degree of impact on bone development, nervous system, respiratory system and reproductive system. Because the systems and organs of adolescents are not fully developed, their functions are not yet sound, and their resistance is weak, the harm of smoking is greater than that of adults. In addition, because the respiratory tract of adolescents is narrower than that of adults and the cilia of the respiratory mucosa are not fully developed, smoking can damage the respiratory tract and cause inflammation, increase breathing resistance, reduce lung capacity, affect the development of the adolescent chest, and thus affect their overall development.

The large amount of nicotine contained in tobacco is also toxic to the brain nerves. It can cause students to suffer from memory loss, lack of energy, and poor academic performance. The survey found that students who smoke have lower academic performance than those who do not smoke. In addition, adolescents are in a critical period of sexual development. Smoking can reduce testosterone secretion by 20%-30%, reduce sperm count and cause sperm deformity, delay menarche and cause menstrual disorders in girls. Smoking among teenagers will also reduce the age of onset of coronary heart disease, hypertension and cancer. Relevant data show that the younger the age of smoking, the more serious the harm to health. The mortality rate of those who start smoking at the age of 15 is 55% higher than that of those who start smoking after the age of 25, and more than 1 times that of non-smokers.

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Smoking damages the brain and affects intelligence. Tobacco smoke contains high levels of carbon monoxide. After carbon monoxide is inhaled into the human body, it combines with hemoglobin in the blood to form carboxyhemoglobin, which prevents hemoglobin from combining with oxygen normally to form oxyhemoglobin, and thus loses its oxygen-carrying function. Because the human brain has a large demand for oxygen and is very sensitive to hypoxia, smoking too much will make you feel unfocused, and even cause headaches and dizziness. Over time, the brain will be damaged and thinking will become slow. This will inevitably affect study and work, and cause students' academic performance to decline.

If teenagers smoke, it will definitely cause great harm to their bodies. The bodies of teenagers are in the development stage. If they smoke a lot during the development stage, it will definitely affect the development of the body. Smoking by teenagers may also damage the lungs. Smoking too frequently can easily lead to stomach cancer. Therefore, the smoking habit must be improved in time.