Why do people smoke

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Why do People Smoke? By Ruth P. Wachter The impact of smoking on mental health is difficult to ascertaine. An analyse based on the biopsychosocial model. A closer look at the physical process of smoking indicates a cycle time from lung inhalation until the nicotine reaches the brain of 10-16 seconds (Javis, 2004). Thereof just 7.5 seconds are needed for the distribution between lung and brain. This is much faster than e.g. an intravenous injection of diacetylmorphine (more commonly known as „Heroin“) that needs almost 14 seconds to reach its final destination after injection (Warburton, 1985). The elimination half-life (EHL) of nicotine (which is the stimulant drug contained in cigarette smoke) is 15-20 minutes. However, the EHL of diacetylmorphine is 0.8-7 hours. Due to the short EHL of nicotine, smokers are required to have their regular cigarettes to avoid a drop-off of their blood nicotine concentration. University of Liverpool

Before concentrating on the application of the biopsychosocial model, I want to say a few brief words about smoking behaviour in general. According to Simonich (1991), the approaches of regarding the question „why people smoke“ can be divided into two categories. The first category includes the noncognitive approaches (e.i. nicotine addiction). The second category contains the cognitive approaches (e.i. help to relax, feel more comfortable at parties, help to keep weight down). In the course of time, the debate between the opinion that smoking is a choice (cognitive) or addiciton (noncognitive) has become more and more important. Fernander, Shavers & Hammons (2007), in a study of tobaccorealated health disparities among racially classified social groups, explain that 3 million humans die annually because of smoking. The morbidity rate per country caused by smoking behaviour varies significantly. They argue that the cultural differences in smoking behaviour (e.i. number of cigarettes per day, type of cigarette, etc.) are the

reasons why e.g. American females risk suffering from cancer is significantly higher than the risk for European females. Biological aspect. You often hear that smoking damage the health. We all know smoking incurs the risk to suffer from lung cancer, mouth cancer, peripheral arterial disease or paradontitis. Tobacco companies are already obliged to print warning labels on cigarette boxes. Nevertheless, people still smoke. The question must be asked, therefore, whether or not smoking can have also positive effects in case of the biological aspect. Grehoff, Aston-Jones & Svensson (1986) show that nicotine results in a higher release of noradrenaline and acetylcholine which may improve the cognitive performance. Levin, Wilson, Rose & McEvoy (1996) agree with this approach and apply the effects of haloperidol and nicotine on cognitive performance on a group of schizophrenics. The authors illustrate the possibility of nicotine in combination with haloperidol for reducing cognitive deficits. MSC of Applied Psychology

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