According to the American Society of Addiction Medicine, addiction is "a primary, chronic disease of brain reward, motivation, memory and related circuitry." However, that's not what the epidemiology of the disorder suggests. By age 35, half of all people who qualified for active alcoholism or addiction diagnoses during their teens and 20s no longer do, according to a study of over 42,000 Americans in a sample designed to represent the adult population.
The average cocaine addiction lasts four years, the average marijuana addiction lasts six years, and the average alcohol addiction is resolved within 15 years. Heroin addictions tend to last as long as alcoholism, but prescription opioid problems, on average, last five years. In these large samples, which are drawn from the general population, only a quarter of people who recover have ever sought assistance in doing so (including via 12-step programs). This actually makes addictions the psychiatric disorder with the highest odds of recovery.
The hype machine of addiction, especially from industries dedicated to trying to manage it, helps hide this fact.
Moreover, if addiction were truly a progressive disease, the data should show that the odds of quitting get worse over time. In fact, they remain the same on an annual basis, which means that as people get older, a higher and higher percentage wind up in recovery. If your addiction really is "doing push-ups" while you sit in AA meetings, it should get harder, not easier, to quit over time….
So why do so many people still see addiction as hopeless? One reason is a phenomenon known as "the clinician's error," which could also be known as the "journalist's error" because it is so frequently replicated in reporting on drugs. That is, journalists and rehabs tend to see the extremes: Given the expensive and often harsh nature of treatment, if you can quit on your own you probably will. And it will be hard for journalists or treatment providers to find you.
That's why it always helps, when people are hyping legal "solutions" to the allegedly insuperable problem of "drug addiction" that "recovery" is likely even without legal or psychiatric interventions (often the same).