Cocaine in the Brain :: Biology Essays Research Papers

Cocaine in the Brain "Cocaine delivers an intensity of pleasure - and despair - beyond the bounds of normal human experience." During the 1980s, Partnership for a Drug Free America began airing commercials that seem to either frighten or educate people about the use of illegal drugs. One of these commercials avowed, "No one ever says, 'I want to be a junkie when I grow up'." The comment is obvious, but very true. Probably very few people aspire to be drug addicts. But it happens, everyday. Why? What is so good about a drug that can potentially destroy a person's body? How does it work? What are its effects on the brain? Why is it so hard to quit? Cocaine (C17H21NO4) comes from the leaf of an Erythroxylon coca bush. It is a drug that effects the central nervous system. It causes feelings of euphoria, pleasure, increased energy and alertness. People under the influence of cocaine often do not feel the need for food or sleep. They also feel energetic and may talk a lot. However, depending on factors such as environment, dosage, and the manner in which the drug is taken, cocaine can have adverse effects such as violent, erratic behavior, dizziness, paranoia, insomnia, convulsions, and heart failure to name a few. Long- term effects of cocaine include, but are not limited to strokes, heart attacks, seizures, loss of memory, and decrease in learning capability (1). People may not always know the exact consequences of the drug they are taking, however, chances are that they do know that the drug is unhealthy for them. Schools across the country educate about the dangers of drug use and abuse through programs like D.A.R.E., television stations show anti-drug advertisements as a public service, and even city buses blazon anti-drug propaganda. People are aware that very rarely does anything good come from drug use, and still, everyday people fall victim to drugs. Why do people succumb to the urge to try drugs? It feels good...why else? When a person takes cocaine, it causes a rush. There is between one or two minutes of intense pleasure. This is followed by five to 8 minutes of euphoria, then as the high comes down, an overwhelming urge for more, which may last for a day. (3) When a user is between cocaine doses or halts usage, the opposite effects occur. The user is depressed and tired (2).