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.Over time, addictions can seriously interfere with your daily life. People experiencing addiction are also prone to cycles of relapse and remission. This means they may cycle between intense and mild use. Despite these cycles, addictions will typically worsen over time. They can lead to permanent health complications and serious consequences like bankruptcy.