the term addictive disease or addiction describes a persistent habit that is harmful to the person. thus addiction is a chronic disease with reliance on the substance causing the addiction. the addictive substance also causes the accompanying deterioration of a person's physical and psychological health. psychologically an individual's behavior pattern establishes how the addictive substance is used. one type of behavior is compulsive behavior which is an overwhelming and irresistible interest in use of the substance. for example the compulsive addict makes sure that the substance is always available. another type of behavior is habitual behavior which is using the substance regularly or occasionally for the desirable effects. physically continuous use of the substance leads to dependence on the drug by the body. this dependence means that when the drug is discontinued symptoms of withdrawal or distress occur. nicotine is the component of cigarettes that addicts. almost immediately upon inhalation the body responds to the nicotine. an individual feels relaxed calmer and happier than before the inhalation. these pleasant feelings reflect the physical side of addiction; but then doing without cigarettes causes craving for more cigarettes irritability impatience anxiety and other unpleasant symptoms. indeed these symptoms are the symptoms of withdrawal from cigarettes. what's more over time more and more nicotine is desired to produce the favorable effects and to avoid the symptoms of withdrawal.
what is an addictive disease and why is smoking considered an addictive disease?