How is "relapse" defined in the context of substance use?

In the context of substance use, "relapse" is defined as a return to substance use after a period of abstinence. This definition acknowledges that recovery from addiction is often a nonlinear journey, and individuals can experience periods of both sobriety and relapse. Relapse signifies a setback in the recovery process, highlighting the challenges many individuals face as they navigate their relationship with substances. It is important to recognize that relapse does not indicate failure; rather, it serves as a learning opportunity to understand triggers and develop more robust coping strategies for the future.

The other options describe concepts that do not align with the definition of relapse. A new approach to therapy reflects a change in treatment methods rather than a setback in substance use. An increase in therapeutic engagement suggests that a person is actively participating in their recovery process without reverting to substance use. Lastly, a successful recovery indicates a state of sustained abstinence and well-being, which contrasts with the concept of relapse altogether.