What is the definition of addiction? Addiction is a treatable, chronic medical disease involving complex interactions among brain circuits, genetics, the environment, and an individual’s life experiences. People with addiction use substances or engage in behaviors that become compulsive and often continue despite harmful consequences.

Short Definition of Addiction: Addiction is a primary, chronic disease of brain reward, motivation, memory and related circuitry. Dysfunction in these circuits leads to characteristic biological, psychological, social and spiritual manifestations.

What’s the definition of addiction? An addiction is a chronic dysfunction of the brain system that involves reward, motivation, and memory. It’s about the way your body craves a substance or behavior, especially if it causes a compulsive or obsessive pursuit of “reward” and lack of concern over consequences.

Definition of addiction: Addiction is repeated involvement with a substance or activity, despite the substantial harm it now causes, because that involvement was (and may continue to be) pleasurable and/or valuable.