Most tobacco smokers begin during adolescence or early adulthood. Smoking has elements of risk-taking and rebellion, which often appeal to young people. The presence of high-status models and peers may also encourage smoking. Because teenagers are influenced more by their peers than by adults,[53] attempts by parents, schools, and health professionals at preventing people from trying cigarettes are often unsuccessful.
Smoking Injurious to health |
Smokers often report that cigarettes help relieve feelings of stress. However, the stress levels of adult smokers are slightly higher than those of nonsmokers, adolescent smokers report increasing levels of stress as they develop regular patterns of smoking, and smoking cessation leads to reduced stress. Far from acting as an aid for mood control, nicotine dependency seems to exacerbate stress. This is confirmed in the daily mood patterns described by smokers, with normal moods during smoking and worsening moods between cigarettes. Thus, the apparent relaxant effect of smoking only reflects the reversal of the tension and irritability that develop during nicotine depletion. Dependent smokers need nicotine to remain feeling normal.
Psychologists such as Hans Eysenck have developed a personality profile for the typical smoker. Extraversion is the trait that is most associated with smoking, and smokers tend to be sociable, impulsive, risk taking, and excitement-seeking individuals.[55] Although personality and social factors may make people likely to smoke, the actual habit is a function of operant conditioning. During the early stages, smoking provides pleasurable sensations (because of its action on the dopamine system) and thus serves as a source of positive reinforcement. After an individual has smoked for many years, the avoidance of withdrawal symptoms and negative reinforcement become the key motivations. Although smoking tobacco has long been seen as a universally addictive trait, it has been proven statistically that people take a varying amount of time to become dependent on the drug nicotine. In fact, the graph showing percentage of the "population showing addictive behaviour" vs "amount of nicotine taken" levels off before reaching 100% of the population, showing that a proportion of people never become dependent on nicotine at all.
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However, because people who smoke are engaging in an activity that has negative effects on health, they tend to rationalize their behavior. In other words, they develop convincing, if not necessarily logical, reasons why smoking is acceptable for them to do. For example, a smoker could justify his or her behavior by concluding that everyone dies and so cigarettes do not actually change anything. Or a person could believe that smoking relieves stress or has other benefits that justify its risks. Smokers who need a cigarette first thing in the morning will often quote the positive effects, but will not accept that they awake feeling below normal levels of happiness (lower levels of dopamine) and merely smoke to return themselves to a "normal" level of happiness ("normal" level of dopamine).