Healthy living habits include: regular life, reasonable diet, balanced camp, regular meals a day, rational drug use, sincere friendship between students of the opposite sex, active participation in recreational activities and sports, rejection of drugs, etc. Unhealthy habits include non-smoking, but the harm of second-hand smoke, sometimes alcoholism and smoking: cigarettes contain more than 65,438+0,400 ingredients. There are more than 40 carcinogens in the smoke produced during smoking. There are more than ten kinds of substances that can promote the development of cancer, among which nicotine, carbon monoxide tar and other metal compounds are the most harmful to human body. The nicotine in cigarettes is enough to kill a mouse. The binding capacity of carbon monoxide and hemoglobin in cigarette smoke is 240-300 times greater than that of oxygen, which seriously weakens the oxygen carrying capacity of red blood cells. Therefore, smoking will accelerate blood coagulation. It is easy to cause cardiovascular diseases such as myocardial infarction, stroke and myocardial hypoxia. What's more, smokers also seriously hinder the health of others. The results show that smokers do more harm to others than to themselves when smoking. Harm of alcoholism: liver injury: fat accumulation in the liver causes fatty liver. Gastric ulcer: It can cause gastric bleeding and endanger life. Nervous system damage: such as peripheral neuropathy. So children can't drink. It's easy to get stupid. Cerebral cortex atrophy: It is reported that some chronic alcoholics have cerebral cortex atrophy, and some patients have signs of mental decline. When you meet smokers in the future, you should explain the harm of smoking to them and persuade them not to smoke, refuse to drink and drink less.
So the answers are: regular life, reasonable diet, balanced camp, eating three meals a day on time, rational drug use, establishing sincere friendship between students of the opposite sex, actively participating in recreational activities and sports, refusing drugs and so on. (health); Second-hand smoke, sometimes alcoholism (unhealthy); Reject secondhand smoke and alcohol abuse.