Drug Addiction Term Paper

Drug Addiction and Homeostasis

Homeostasis refers to the regulation of an organism's vital functions via internal processes. The central nervous system governs the human body's maintenance of homeostasis. The introduction of any chemical substance into the body via ingestion, inhalation, or absorption can disrupt the body's homeostasis, or alternatively, create homeostasis when there was previously an imbalance. Therefore, the use of narcotic drugs can alter a body's homeostatic state, just as much as the use of psychiatric medications can. Antidepressants are designed to regulate an individual's neurological processes and responses and ideally to create homeostasis.If mood disorders such as depression are caused by organic imbalances in brain chemistry, then so too can addictions be caused by upsets in the body's homeostasis. The addict seeks to self-medicate through the use of various substances, whether alcohol, cocaine, or marijuana. For example, cocaine increases the rate of neurotransmission and is therefore called a stimulant. When an individual takes cocaine, the drug causes the brain chemical dopamine to accumulate in the brain. The result is an upset in homeostasis, characterized by increased….....