There are three stages of nicotine addiction:
• first – episodic smoking of not more than 5 cigarettes per day; smoking cessation at this stage does not cause any disorders; small changes occurring in the activity of the nervous system are completely reversible at this stage;
• the second – constant smoking from 5 to 15 cigarettes per day; a slight physical dependence appears; upon cessation of smoking, a condition develops that is severe in physical and mental terms, it is removed only by smoking another cigarette;
• the third – constant smoking from one to one and a half packs per day; a habit of smoking on an empty stomach is developed, immediately after eating and in the middle of the night; addiction to tobacco is very strong; smoking cessation causes a serious condition of the smoker; pronounced changes in the nervous system and internal organs.
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.