Smoking is prone to chronic bronchitis, emphysema, cor pulmonale and chronic obstructive pulmonary disease. Chronic obstructive pulmonary disease (COPD) is a common disease that can be prevented and treated. It is characterized by persistent respiratory symptoms and limited airflow. The prevalence of chronic obstructive pulmonary disease (COPD) is increasing rapidly in China. At present, the prevalence of COPD in people over 40 years old has reached 13.7%, which has increased by 67% in ten years.
Smoking can also lead to male sexual dysfunction and infertility; Female smoking will reduce the pregnancy rate and increase the risk of ectopic pregnancy, abortion, stillbirth, premature delivery, low birth weight infants and sudden infant death syndrome. Smoking will also accelerate the aging of women and cause osteoporosis.
Dr Ouyang said that there is evidence that smokers infected with COVID-19 virus are seriously ill and have a greater risk of death. The COVID-19 progression of smokers may be 14 times that of patients without smoking history. Compared with former smokers and never smokers, the probability of serious complications among current smokers is 1.45 times. And among smokers at present, the mortality rate is also high, which is 38.5%.
Extended data
The earlier you quit smoking, the better the effect.
The benefits of quitting smoking are gradually manifested. Generally, after quitting smoking for 6 hours, the heart rate will drop and the blood pressure will drop slightly. Nicotine will be excreted after 12 hours. After 24 hours, carbon monoxide will be discharged from the lungs, thus improving respiratory function. There may be a cough at this time, because it can clear the blockage of trachea and lungs.
After 2 days, the adverse reactions caused by nicotine will disappear. About 2 months, the blood circulation of hands and feet will increase. After quitting smoking 1 year, the risk of heart disease will be significantly reduced. After quitting smoking 10 years, the risk of illness will become the same as that of non-smokers.
People's Network-Popular Science | Smoking is so harmful, will you stop smoking after reading it?