1, smoking reduces life expectancy
When it comes to the harm of smoking, we have to talk about life expectancy. According to some surveys, the average life expectancy will be shortened by 1 1 minute for every cigarette smoked. Of course, this figure may not be accurate, but one thing is certain: non-smokers live longer than smokers.
2. Smoking affects the quality of sleep.
The latest survey by German scientists shows that smokers have less sleep time and worse sleep quality than non-smokers. Among them, nicotine is the chief culprit affecting sleep. Poor sleep quality will not only make people feel bad after waking up, but some studies also show that if the habitual sleep quality is poor, it will also lead to health problems such as obesity, diabetes and heart disease.
3. Smoking affects reproductive function.
According to the survey, the sperm fertilization ability of long-term smokers is 75% lower than that of non-smokers. The culprit is nicotine in cigarettes, because sperm can recognize nicotine and respond to it. Long-term smoking will overload nicotine receptors in human sperm, thus reducing fertilization ability.
Smoking will increase the risk of miscarriage.
Smoking in pregnant women is not only harmful to health, but also may harm the fetus in the stomach. Nicotine and nicotine contained in cigarettes can cause systemic vascular diseases, and uterine blood vessels will also be implicated. Smoking makes early pregnancy prone to abortion, and pregnancy-induced hypertension syndrome (PIH), one of the most dangerous complications during pregnancy, occurs in the middle stage.