Final answer:
Addiction is a condition characterized by physical and psychological dependency on a drug. It involves the unnecessary or improper use of a drug for non-medical purposes, which can lead to a sense of well-being. However, over time, the individual may develop a tolerance and need for increasing amounts of the substance to achieve the same effects.
Step-by-step explanation:
Addiction is a condition characterized by the physical and psychological dependency on a drug. It involves the unnecessary or improper use of a drug for non-medical purposes, which can lead to a sense of well-being. However, over time, the individual may develop a tolerance and need for increasing amounts of the substance to achieve the same effects.
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