Name and characterize bad habits that destroy human health.

The most common bad habits that destroy human health include tobacco smoking, alcohol abuse, drug addiction and substance abuse.
Regular and constant smoking of tobacco over time leads to the physical and mental dependence of the smoker, which is practically no different from drug addiction. Smoking is the main cause of the onset and development of many dangerous diseases.
The systematic use of alcohol has a destructive effect on all systems and organs of the person, it accelerates the process of biological aging (the lifespan of an alcoholic is about 15 years shorter than the average).
Addiction and substance abuse are more a disease than a bad habit that you can quit at any time. These diseases, first of all, destroy the nervous and immune systems, liver, heart and lungs.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.