What is Dependence?

Dependence is a condition in which a person develops a physical or psychological need for a substance, typically resulting from prolonged or repeated use. It is commonly associated with drugs or alcohol, where the body or mind becomes so used to the presence of the substance that functioning without it becomes difficult or distressing.

There are two main types of dependence: physical and psychological. Physical dependence involves biological adaptation, such as tolerance and withdrawal symptoms. For example, when a person stops using a substance they have become physically dependent on, they may experience symptoms like nausea, shaking, or seizures. Psychological dependence, on the other hand, refers to the emotional and mental components of substance use, such as cravings and compulsive behaviors to use the substance despite knowing the harmful consequences.

In addiction treatment, recognizing and addressing both types of dependence is essential for successful recovery. Treatments may include medically supervised detoxification to manage withdrawal symptoms and therapy to address the emotional and behavioral patterns tied to substance use. Legal definitions often distinguish dependence from addiction, with the former being a clinical condition that may or may not include compulsive drug-seeking behavior.