What happens when an individual is physically dependent on a drug?

When an individual is physically dependent on a drug, the absence of the drug indeed causes an abnormal state in the body. This means that the body has adapted to the presence of the drug and has changed its normal physiological functioning in response to it. As a result, if the drug is suddenly withdrawn, the individual experiences withdrawal symptoms, which can range from mild to severe. These symptoms occur because the body is reacting negatively to the lack of the substance it has come to rely on.

Physical dependence is characterized by these physiological changes, which differentiate it from psychological dependence, where cravings or compulsive drug-seeking behavior might occur without the same physical withdrawal symptoms. Understanding this concept is crucial because it emphasizes the need for careful management when tapering off or quitting a substance to avoid potential health risks associated with withdrawal.