To fully understand the psychology of addiction, you must identify how addiction is created.
An addiction is a habit that becomes profoundly entrenched and self-perpetuating over time. This habit rewires the circuitry of the brain as it is repeated over and over again. By repeating a highly pleasurable experience, the neurons become altered and adjust to become increasingly efficient at the new experience, causing a person to crave that habit. Over time, that habit becomes an addiction.
Fortunately, there are ways to create new healthier habits that can reframe and replace the unwanted and harmful patterns of addiction. Still, we must first address the causes and risk factors behind the psychology of addiction.