What is physical dependence defined as?

Physical dependence is identified as a condition where the body has adapted to the presence of a drug, resulting in a physiological need for that substance. This adaptation means that if the drug is removed or its use is significantly decreased, the individual may experience withdrawal symptoms or an abnormal state that can be uncomfortable or even dangerous. This physiological response contrasts with the psychological aspects of substance use, which focus more on cravings and emotional desires.

The other concepts mentioned, such as a strong desire to use drugs regardless of circumstances or a psychological craving, focus on behavioral or emotional aspects of substance use rather than the physiological changes that characterize physical dependence. A temporary state of needing a substance does not capture the ongoing and often severe nature of physical dependence, which tends to be chronic and necessitates continued use of the drug to avoid withdrawal. Therefore, the definition of physical dependence encompasses the adaptation of the body and the resulting consequences when the substance is no longer available.