Psychology and Drugs

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The three different classes of drugs are Stimulants, Depressants and Hallucinogens drugs. Stimulant drugs have many side effects such as having increased confidence, mood elevation, sense of energy and alertness, decreased appetite, anxiety, irritability, insomnia, transient drowsiness and even delayed orgasm. An example of a Stimulant drug is Cocaine. Cocaine is inhaled or what some people would call, “snorted”, through the nose, smoked, or injected directly into the blood stream with a needle in the vein. It is rapidly absorbed into the body and takes effect almost immediately. When one uses cocaine, it produces feelings of deep psychological well being, increase in confidence, and alertness. Cocaine produces this “high” through the neurotransmitter dopamine, which is one of the chemicals that are related to ordinary feelings of pleasure. When cocaine enters the brain, it blocks absorption of leftover dopamine. As a result, the brain is flooded with dopamine produced pleasurable sensations. A major downfall for the use of cocaine is the brain may become permanently rewired; triggering a psychological and physical addiction in which users grow obsessed with obtaining the drug. Over time, users deteriorate mentally and physically and can lead to death. Another example of stimulant drugs is Amphetamines. Dexedrine and Benzedrine are associated with this class of drug. These drugs stimulate the central nervous system and produce a sense of energy and alertness, talkativeness, heightened confidence, and a mood know as “high.” As well as increase concentration and reduce fatigue. Amphetamines also can cause a loss of appetite, increased anxiety, and irritability. When amphetamines are taken over a long period of time, it can cause feelings of being persecuted and general sense of suspiciousness. People who take amphetamine drugs also may lose an interest in sex. In some cases if taken in too large of a quantity, amphetamines can over stimulate the central nervous...
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