What are the benefits of smoking?

Tobacco is a plant that contains many chemical components harmful to human body. When smoking, the tobacco is 700! Burning at a high temperature of 800 degrees Celsius, the substances contained in the original tobacco react with some additives added in the cigarette production process to produce some harmful substances. Among them, nicotine, carbon monoxide, smoke tar, radioactive isotopes, metal elements cadmium and nitrosamines are substances with high content and great harm. These harmful substances are inhaled into the human body, causing damage to the tissues and functions of nervous, cardiovascular, respiratory, digestive, urogenital and other systems, reducing disease resistance, leading to or inducing various diseases. Smoking also affects beauty, accelerates aging and shortens life expectancy. Because in some movies and TV series, characters often light a cigarette while meditating. When people take a long puff of cigarettes, they suddenly realize that the idea has come out and the problem is solved. Therefore, some smokers think that smoking can refresh their minds, which is actually a misunderstanding. Smoking can't refresh yourself, nor can it improve work efficiency and active thinking. On the contrary, it will inhibit the activity of the nervous system and reduce brain function due to the action of toxins. Long-term smoking can also cause neurasthenia and neurotoxicity such as nervousness, memory loss, distraction, trance, insomnia and dreaminess, and slow response. Continued heavy smoking can also lead to dizziness and even shock. Harmful substances contained in smoke enter the respiratory tract, directly stimulate the mucous membrane and tube wall of the respiratory tract, destroy the "natural barrier" of the respiratory tract, cause obstruction of small airways, and reduce the immune function of the lungs, thus leading to various diseases. If the vocal cords are stimulated, people can have a low hoarse voice. Smoking is closely related to acute and chronic tracheitis. Hydrocyanic acid and acrolein in smoke can destroy the respiratory defense function and make the respiratory tract vulnerable to bacterial and viral infection and inflammation. If chronic bronchitis persists for a long time, it will develop into emphysema and pulmonary heart disease. Quitting smoking can prevent uninfected people from suffering from diseases caused by smoking, alleviate or cure patients, reduce the mortality rate of patients, make people who have lost their ability to work return to their jobs, and make people rejuvenate and live a long and healthy life. In short, from the perspective of human health, there are many benefits of quitting smoking, especially those suffering from cancer, coronary heart disease, stroke, chronic bronchitis, emphysema and other diseases, and they should quit smoking immediately to slow down their illness or restore their health.