The harm of smoking to college students 1. Smoking causes breast cancer: Some studies show that women who smoke are much more likely to get breast cancer than women who don't smoke, and active smoking may play a greater role in increasing the risk of breast cancer than previously thought.
2. Smoking will shorten life span: According to the survey, smoking a cigarette will shorten life span 1 1 minute on average. Of course, this figure may not be accurate, but one thing is certain: non-smokers will live longer than smokers.
3, smoking affects sleep: smoking will have a great impact on people's sleep quality. Smokers often feel restless, even less during deep sleep. During sleep, smokers' brain activity is higher than that of non-smokers, so smokers can't sleep well and it is difficult to fall asleep.
4. Smoking affects reproductive function: a long time ago, foreign studies showed that compared with non-smokers, the main indexes of semen quality decreased significantly, the abnormal rate of sperm increased, and the number of white blood cells in semen increased. Nicotine and polycyclic aromatic hydrocarbons produced in tobacco can cause testicular atrophy and sperm morphological changes.
5, smoking increases the risk of miscarriage: pregnant women smoking not only harms their own health, but also may cause harm to the fetus in the stomach. Nicotine and nicotine contained in cigarettes can cause systemic vascular diseases, and uterine blood vessels will be affected.
6. Smoking causes lung diseases: Smoking is one of the main causes of chronic bronchitis, emphysema and chronic airway obstruction. Smoking can cause changes in the structure and function of central and peripheral airways, alveoli and capillaries, and at the same time affect the immune system of the lungs, thus leading to lung diseases.
7. Smoking induces cardiovascular diseases: Smoking not only induces lung diseases, but also induces cardiovascular diseases. According to research, the incidence of coronary heart disease, hypertension, cerebrovascular disease and peripheral vascular disease of smokers is significantly higher than that of non-smokers. The pathogenesis of cardiovascular diseases caused by smoking is mainly that smoking causes vascular endothelial dysfunction, increased thrombosis, enhanced inflammatory response and oxidative modification.
8. Smoking leads to osteoporosis: Can smoking a cigarette also lead to osteoporosis? Many smokers may doubt that smoking does lead to osteoporosis, because nicotine in tobacco will affect the absorption of calcium, inhibit osteoblasts and stimulate the activity of osteoclasts. Insufficient calcium intake alone will release some bone calcium into the blood to maintain normal blood calcium level, which will reduce bone mineral density and cause osteoporosis.
Hazards of smoking and drinking 1. Smoking affects sleep. Because cigarettes contain nicotine, nicotine has an exciting effect, which will interfere with people's normal sleep. Frequent smokers sleep less than non-smokers and their sleep quality will be greatly reduced.
2. Smoking affects fertility. Sperm has a strong repulsive effect on nicotine in tobacco, because sperm can recognize nicotine and react, which greatly reduces the survival rate and vitality of sperm and is prone to infertility. That's why pregnant couples are required not to smoke for half a year.
3. Smoking increases abortion. Smoking is not only harmful to health, but also directly harms the fetus in the uterus and leads to abortion.
Smoking causes lung diseases and cancer. Smoking is the most harmful to the lungs. After a long time, it will affect the function of the lungs and even get lung cancer.