Final answer:
Addiction is a chronic, relapsing disorder characterized by compulsive drug seeking, continued use despite harmful consequences, and long-lasting changes in the brain.
Step-by-step explanation:
Addiction is the chronic, relapsing disorder characterized by compulsive drug seeking, continued use despite harmful consequences, and long-lasting changes in the brain. When someone is addicted to a drug, they experience a strong and uncontrollable desire to use it, even in the face of negative consequences. This can lead to harmful effects on physical and mental health, as well as significant changes in the brain's structure and function.
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