Regular smoking can easily lead to addiction, bronchial lung cancer, coronary heart disease and other hazards. 1. Addiction: The nicotine in tobacco makes people feel uncomfortable at the beginning of smoking, and with the growth of smoking time, the nicotine content in the blood reaches a certain concentration, which stimulates the brain and drives each organ to become dependent on nicotine. 2. Bronchial lung cancer: long time smoking, harmful substances in tobacco, toxic substances for a long time to stimulate the bronchial mucosa, affecting the metabolic ability of the bronchial mucosa, leading to cancer, resulting in bronchial lung cancer. 3. Coronary heart disease: long-term smoking will make the lumen of blood vessels narrow, destroy lipid metabolism, leading to a decrease in the supply of oxygen and enhance the viscosity of blood vessels, resulting in dyslipidemia and thus leading to coronary heart disease. In addition, regular smoking smoking may also appear other hazards, it is recommended to go to the hospital in time to check the physical discomfort, clear reasons, and then deal with it accordingly.