Coffee, one of the most common drinks in our society. Majority of people like to get a taste of it and have an enjoyable time. However, it may lead to both physical and psychological influence. Caffeine is usually taken in form of coffee (Frishman, Del Vecchio, Sanal, and Ismail, 2003). Since caffeine is the substance most being taken in, it will be focused in the following parts. In the first part, several aspects involving effects of caffeine, reasons of popularity, drug of dependence, and withdrawal are discussed. In the second part, the result of a research with analysis focusing on drinking pattern (amount of coffee taken in for certain time), reason to take coffee, good and bad effects of coffee on coffee takers, and knowledge among them is illustrated.
Popularity and Effects of Caffeine-containing Coffee
The popularity is evidenced by majority of literatures. It is because, besides tasty, coffee can enhance mood, needs as social intercourse, for example taking coffee and talking with friends in caf¨¦, is also one of the main reasons. Furthermore, caffeine benefits us in different kinds of aspects. It can raise arousal (alertness), human performance including vigilance performance, logical reasoning, concentration and memory. Besides, enhancing mood, reducing boredom also are the advantages accounting for popularity of coffee.
On the other hand, the adverse effects should not be ignored; it is mainly related to health. It leads to hypertension, anxiety, and sleep disturbance. If pregnant women in take caffeine, caffeine may decrease birth weight of fetus and increase rate of abortion (Bee, Boyd, 2002). Furthermore, it raises level of stress hormone and boosts heart rate. Excess of stress hormones has been shown to intervening health from damaging blood vessels to weakening immune system. For those who have high concentration, sinus tachycardia and arrhythmias may be even observed (Frishman, Del Vecchio, Sanal, and Ismail, 2003). Sudden death does not often happen, however, this risk exists (Frishman, Del Vecchio, Sanal, and Ismail, 2003).
Drug of Dependence
Before discussion, it is necessary to have definitions. The definition of drug a substance that is used as medicine or narcotic (Millar, Fellbaum, Wolff, Lanone, Haskell, 2002). And drug dependence is defined as a pattern of behavior focused on the repetitive and compulsive seeking and taking of a psychoactive drug which show effects on mental state.
Obviously, caffeine is used as drug as there are 2 criteria for drug dependence. Criterion I is composed of limited dependence potential (psychoactive), use of caffeine by all person is regular and effects do not rely on other reinforcer. Criterion II is described as producing pleasant effects, tolerance and physical dependence (Gupta and Gupta, 1999). According to B.S. Gupta and Uma Gupta (1999), caffeine partially meet criterion I and totally tally with criterion II, so caffeine is a drug...