What are the harms of smoking for men?

The harms of male smoking mainly involve damage to the respiratory system, increased risk of cardiovascular disease, decreased reproductive function, increased probability of cancer induction, and accelerated aging.

1. Respiratory damage:

The tar and harmful gases in tobacco smoke can directly irritate the bronchial mucosa. Long-term smoking may lead to chronic bronchitis, which is manifested by persistent cough and sputum production. Chemicals in smoke can damage the alveolar structure, gradually developing emphysema, and in severe cases, chronic obstructive pulmonary disease. Smokers are at a significantly higher risk of respiratory infections such as pneumonia and tuberculosis than non-smokers.

2. Cardiovascular hazards:

Nicotine causes blood vessels to constrict and raises blood pressure, while carbon monoxide reduces the blood's ability to carry oxygen. These changes will accelerate the process of atherosclerosis and increase the incidence of coronary heart disease and myocardial infarction. Smoking also causes peripheral vascular disease, which may lead to intermittent claudication and even gangrene. People who smoke more than 20 cigarettes a day have a stroke risk 2-4 times higher than non-smokers.

3. Reproductive effects:

Smoking will reduce testosterone secretion, reduce sperm quality and motility, and the proportion of abnormal sperm may increase by more than 40%. Nicotine affects penile vascular endothelial function and increases the incidence of erectile dysfunction. The spontaneous abortion rate and fetal malformation rate of male spouses who smoke are also significantly increased, which is closely related to sperm DNA damage.

4. Cancer risk:

Tobacco contains more than 70 confirmed carcinogens, and long-term exposure can increase the incidence of lung cancer by 15-30 times. Smoking is also the main cause of laryngeal cancer, oral cancer, and esophageal cancer, and the risk of bladder cancer increases by 2-3 times. Even if you smoke only 5 cigarettes a day, your risk of cancer is still 50% higher than that of a non-smoker. There is a significant dose-effect relationship between the amount of smoking and the risk of cancer.

5. Accelerate aging:

Smoking depletes antioxidant substances such as vitamin C in the body, leading to loss of skin collagen and signs of premature aging such as wrinkles and spots. Free radicals in smoke can damage cell DNA and make the body's physiological age 5-10 years older than its actual age. The incidence of periodontal disease among smokers increases by three times, the risk of tooth loss increases by two times, and the problem of oral odor persists.

It is recommended that smokers gradually reduce the amount of smoking and eventually quit smoking, and seek help from professional smoking cessation clinics. Daily consumption of citrus fruits, kiwi fruits, etc. that are rich in vitamin C can help reduce oxidative damage. Regular aerobic exercise such as brisk walking, swimming, etc. can improve lung function and blood circulation. Maintain adequate sleep and a good attitude, and use nicotine replacement therapy to assist in quitting smoking if necessary. Regularly conduct physical examinations such as pulmonary function tests and low-dose chest CT to detect potential health problems early.