What does it mean to be dependent on a drug?

Being dependent on a drug means that an individual experiences both physical and psychological reliance on that substance. Physical dependence occurs when the body adapts to a drug, leading to tolerance (requiring more of the drug to achieve the same effect) and withdrawal symptoms if the drug is reduced or stopped. Psychological dependence involves emotional and mental reliance on the drug, with the individual feeling a compulsion to seek and use the substance despite potential negative consequences.

This definition captures the complex relationship that can develop between a person and a substance, where their normal functioning becomes intertwined with the use of the drug. It emphasizes that dependency is not merely about the frequency of use or social interactions but involves significant health considerations and lifestyle impacts related to both the body and mind.