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Drug abuse is a complex social, psychological and biological phenomenon that cannot be explained by a single factor. Various theories have been developed by scholars to understand why individuals start using drugs, why some people become dependent on substances, and why drug abuse persists despite its harmful consequences. These theories provide important insights for prevention and intervention strategies in the field of substance abuse. One of the earliest explanations is the biological theory of drug abuse. According to this perspective, drug dependence is influenced by genetic and physiological factors. Some individuals may inherit a biological predisposition that makes them more vulnerable to substance use disorders. Research suggests that differences in brain chemistry, particularly in neurotransmitters such as dopamine, influence feelings of pleasure and reward. Drugs such as alcohol, opioids, and stimulants affect the brain’s reward system, creating intense feelings of euphoria that encourage repeated use. Over time, the brain adapts to the presence of the substance, leading to tolerance and dependence. Biological theories emphasize that addiction is partly a disease of the brain and requires medical as well as psychological treatment. Psychological theories also play a significant role in explaining drug abuse. One important psychological explanation is the psychoanalytic theory. This theory, influenced by the ideas of Sigmund Freud, suggests that drug abuse is related to unresolved conflicts in the unconscious mind. Individuals _________ _______ _________ _______ __________ __________ ______ _________ ________ ____.
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