Quitting smoking is good for your health and smokers should quit as soon as possible. The following five groups of people, in particular, need to quit smoking early.1. Couples who want to get pregnant and have children. Recently, there has been increasing evidence that smoking impairs women’s fertility and has multiple harmful effects on men’s reproductive function. Women who smoke take longer to conceive than non-smokers. Smoking by male partners is also associated with delayed conception. And infertility treatments are less likely to be successful. This is thought to be due to the harmful effects of smoking on the ovaries. Stay away from tobacco and you’ll be closer to new life! Xing Guohong, Department of Respiratory Medicine, Jinan Military Region General Hospital 2. Expectant fathers and mothers. Women who smoke during pregnancy have a significantly higher risk of miscarriage and a higher chance of complications, such as premature rupture of the amniotic membrane and complications involving the placenta, which can cause preterm labor and other problems. Smoking during pregnancy can be harmful or even fatal to the fetus. Low birth weight is a leading cause of infant mortality and in many cases is caused by smoking. The harmful effects of smoking on the fetus during pregnancy can extend from infancy to childhood. Mothers who smoke during pregnancy and after delivery have a three to four times higher risk of their babies dying from Sudden Infant Death Syndrome (SIDS).3. Patients with cardiovascular disease. Patient surveys show that smoking is closely related to the risk of coronary heart disease. Smoking increases the risk of coronary heart disease death by an average of 76%, increases the relative risk of ischemic stroke by 90%, and increases the relative risk of sudden death by more than three times. Smoking in cardiovascular and cerebrovascular patients is tantamount to chasing death.4, patients with respiratory diseases. Tobacco smoke damage to the airways is associated with the occurrence of a variety of lung diseases. The main non-cancerous lung disease caused by smoking is chronic obstructive pulmonary disease. Others include asthma, respiratory bronchiolitis, community-acquired pneumonia and many types of interstitial lung disease. Recently there has been increasing evidence that tobacco smoke impairs the structural integrity of the lungs. Tobacco smoke destroys collagen in the lungs, and collagen destruction is a key step in the initiation of the inflammatory and destructive process in the lungs stimulated by tobacco smoke, which ultimately leads to the development of emphysema. For patients who already have respiratory disease, continuing to smoke is certainly adding fuel to the fire.