Final answer:
Addiction best describes the overall effects on a person's behavior, psychology, and chemistry.
Step-by-step explanation:
The overall effects on a person's behavior, psychology, and chemistry can best be described as addiction. Addiction refers to a complex condition in which a person cannot control their use of a substance or engage in a behavior, despite negative consequences. It affects not only a person's behavior but also their brain chemistry and psychological well-being.
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