Understanding Addiction

Is Addiction a Disease or a Choice? The Truth Behind the Debate

RehabNews Africa
14 November 2025
14 min
Is Addiction a Disease or a Choice? The Truth Behind the Debate

Is Addiction a Disease or a Choice? The Truth Behind the Debate

Why the Answer Matters More Than You Think

Perhaps no question in addiction treatment generates more heated debate than this one: Is addiction a disease like diabetes or cancer, or is it a choice that people make? The psychiatric establishment insists addiction is a chronic brain disease requiring lifelong medication management. Critics argue that calling addiction a disease removes personal responsibility and creates helpless victims. Families caught in the middle just want to know: what's the truth, and which answer leads to actual recovery?

The answer is more nuanced than either extreme position suggests, and understanding the truth behind this debate is essential for choosing effective treatment. The disease model has become dominant not because it's scientifically accurate, but because it serves powerful financial interests. Meanwhile, the choice model oversimplifies addiction in ways that blame victims and ignore real brain changes. The truth lies in a third path that acknowledges both the biological reality of addiction and the human capacity for change.

The Disease Model: What It Claims

The Official Position

In 1956, the American Medical Association declared alcoholism a disease. In the decades since, this disease model has expanded to include all forms of addiction. The National Institute on Drug Abuse (NIDA) now defines addiction as "a chronic, relapsing brain disease characterized by compulsive drug seeking and use, despite harmful consequences."

According to the disease model, addiction shares key features with other chronic diseases. It has a biological basis involving brain chemistry and structure. It runs in families, suggesting genetic predisposition. It follows a predictable course of progression if untreated. It requires ongoing medical management and has high relapse rates similar to other chronic conditions like diabetes or hypertension.

The disease model emphasizes that addiction is not a moral failing or character weakness. People don't choose to become addicted any more than they choose to develop diabetes or cancer. This framing aims to reduce stigma and encourage people to seek treatment without shame.

The Treatment Implications

If addiction is a chronic disease, the treatment implications follow logically. Like diabetes requires insulin or hypertension requires blood pressure medication, addiction requires pharmaceutical intervention. This is the foundation of medication-assisted treatment (MAT), which uses drugs like methadone, Suboxone, naltrexone, and various psychiatric medications to "manage" addiction as a lifelong condition. The disease model also suggests that complete recovery is impossible. Just as a diabetic will always have diabetes even with good management, an addict will always be an addict. The best one can hope for is to manage the disease and prevent relapse, but cure is not expected. This is why 12-step programs teach that members are "recovering" but never "recovered"—the disease is always present, always threatening relapse.

Why the Disease Model Became Dominant

Follow the Money

The disease model's dominance has less to do with scientific evidence and more to do with financial incentives. Understanding who benefits from the disease model reveals why it has become so entrenched despite significant evidence against it.

Pharmaceutical companies profit enormously from the disease model. If addiction is a chronic disease requiring lifelong medication, they have a permanent customer base. Methadone clinics generate recurring revenue as patients remain on the drug for years or decades. Suboxone manufacturer Indivior generated over $1 billion in annual revenue before generic competition emerged. Psychiatric medications prescribed alongside addiction treatment create additional profit streams.

Insurance companies prefer the disease model because it allows them to limit coverage. If addiction is a chronic disease like diabetes, they can justify short-term treatment (28 days) followed by "maintenance" medication rather than comprehensive long-term rehabilitation. This reduces their costs while appearing to provide coverage.

Treatment facilities benefit from the revolving door created by the disease model. When treatment focuses on short-term stabilization rather than addressing root causes, relapse rates remain high. Each relapse generates another treatment admission and another insurance payment. Some facilities have been caught actively encouraging relapse to generate repeat business.

The psychiatric industry expands its reach by medicalizing addiction. Every person with addiction becomes a psychiatric patient requiring ongoing medication management, therapy, and monitoring. This creates jobs for psychiatrists, psychologists, and other mental health professionals while expanding the definition of mental illness to include more of the population.

The Stigma Reduction Argument

Proponents of the disease model argue that it reduces stigma by removing moral judgment. If addiction is a disease, people can seek help without shame, just as they would for any other medical condition.

This argument has intuitive appeal, but research shows mixed results. While some people find the disease label reduces their self-blame, others find it creates hopelessness and helplessness. If addiction is a chronic brain disease beyond their control, why bother trying to recover? The disease label can become an excuse for continued use and a barrier to taking responsibility for change.

Furthermore, the disease model hasn't actually reduced societal stigma as much as promised. People still judge addicts harshly, perhaps even more so when they "refuse to take their medicine" or "don't manage their disease properly." The disease label simply shifts the judgment from moral failing to medical non-compliance.

The Scientific Problems with the Disease Model

Brain Changes Don't Equal Disease

The primary evidence cited for the disease model is that addiction causes measurable brain changes. Brain imaging studies show altered dopamine receptors, reduced prefrontal cortex activity, and other neurological changes in people with addiction. Disease model advocates point to these changes as proof that addiction is a brain disease.

But this logic is fundamentally flawed. Many behaviors and experiences cause brain changes without being classified as diseases. Learning a new language changes your brain. Falling in love changes your brain. Meditation changes your brain. Trauma changes your brain. The brain is plastic—it constantly changes in response to experience. Brain changes are evidence of learning and adaptation, not necessarily disease.

If we classified every behavior that changes the brain as a disease, we would have to call religious conversion a disease, becoming a parent a disease, and learning to play piano a disease. The presence of brain changes tells us nothing about whether something is a disease or a normal adaptive response.

Addiction Doesn't Behave Like Other Diseases

If addiction were truly a chronic disease like diabetes or hypertension, we would expect it to behave similarly. But addiction shows patterns that are inconsistent with the disease model.

Spontaneous remission: Unlike true chronic diseases, many people recover from addiction without any treatment at all. Studies show that 50-80% of people who meet criteria for substance use disorders in young adulthood no longer meet criteria by their 30s, often without ever entering treatment. Diabetes doesn't spontaneously remit. Cancer doesn't cure itself. But addiction often does.

Response to incentives: People with addiction change their behavior dramatically in response to incentives and consequences in ways that people with true diseases cannot. Offer a heroin addict $1,000 to stay clean for a month, and many will succeed. Offer a diabetic $1,000 to normalize their blood sugar without insulin, and they cannot comply no matter how motivated. Addiction responds to choice and motivation in ways diseases do not.

Context dependency: Addiction is highly dependent on environmental and social context. Vietnam War soldiers who became addicted to heroin in Vietnam had relapse rates of only 5-12% after returning home, compared to 90%+ relapse rates for heroin addicts treated in the US and released back to their original environment. If addiction were a brain disease, changing location shouldn't matter. But it does, dramatically.

Maturing out: Most people with addiction problems in their youth simply "mature out" as they age, take on adult responsibilities, and find meaning and purpose. This natural recovery process doesn't happen with real chronic diseases. You don't mature out of diabetes or hypertension.

These patterns suggest that addiction is better understood as a learned behavior pattern that can be unlearned, rather than a chronic disease requiring lifelong management.

The Genetic Evidence is Weak

Disease model advocates often cite genetic factors as evidence that addiction is a disease. Studies suggest that 40-60% of addiction risk is heritable, meaning genetics play a role in vulnerability.

But this evidence is far weaker than it appears. First, heritability doesn't mean genetic determinism. Height is 80% heritable, but we don't call being tall a disease. Intelligence is highly heritable, but we don't call being smart a disease. Heritability simply means that genetic factors influence a trait—it doesn't make that trait a disease.

Second, the specific genes involved in addiction risk are mostly genes that affect personality traits like impulsivity, sensation-seeking, and stress response. These are normal variations in human temperament, not disease genes. A person with a genetic predisposition toward impulsivity may be more likely to try drugs and more likely to develop addiction, but this doesn't make addiction itself a genetic disease.

Third, environmental factors are at least as important as genetics. Childhood trauma, peer influence, drug availability, cultural attitudes, and life circumstances all strongly influence addiction risk. If we're going to call addiction a disease based on 40-60% heritability, we'd also have to call divorce a disease (50% heritable), political affiliation a disease (40-60% heritable), and religiosity a disease (40% heritable).

The Choice Model: What It Gets Right and Wrong

What It Gets Right

The choice model correctly recognizes that human beings have agency and the capacity to change their behavior. Unlike true diseases that progress regardless of the person's choices, addiction can be overcome through decision-making, commitment, and behavior change.

The choice model also correctly identifies that taking responsibility is essential for recovery. As long as someone views themselves as a helpless victim of a disease beyond their control, they are unlikely to make the sustained effort required for change. Recovery requires acknowledging that while getting addicted may not have been fully chosen, getting un-addicted requires active choice and effort.

Furthermore, the choice model recognizes that addiction serves a purpose for the individual. People use drugs to cope with pain, trauma, boredom, or life circumstances they find unbearable. Understanding these underlying reasons and developing healthier coping mechanisms is essential for recovery. The disease model often ignores these psychological and social factors in favor of purely biological explanations.

What It Gets Wrong

However, the pure choice model also has significant problems. It underestimates the real brain changes that make quitting extremely difficult. Saying "just stop using" to someone whose brain has been rewired by addiction is like telling someone with a broken leg to "just walk normally." The physical and neurological changes are real and create genuine barriers to change.

The choice model can also lead to harsh judgment and blame. If addiction is purely a choice, then addicts are simply making bad choices and deserve whatever consequences result. This perspective ignores the complex factors—trauma, mental health issues, social circumstances, genetic predisposition—that influence vulnerability to addiction.

Finally, the pure choice model offers little practical help. Telling someone they need to "choose" to stop using doesn't provide the tools, support, and treatment needed to actually make that change successfully. It's technically true but practically useless.

The Third Path: Addiction as Learned Behavior

A Better Framework

A more accurate and useful framework views addiction as a learned behavior pattern that involves real brain changes but can be unlearned through the same neuroplastic processes that created it.

This framework acknowledges that drugs do change the brain in measurable ways, creating powerful cravings, impaired decision-making, and dysregulated stress responses. These changes are real and make quitting genuinely difficult—not impossible, but difficult.

However, these brain changes are not permanent disease states. They are learned patterns that can be unlearned. The same neuroplasticity that allowed addiction to develop also allows recovery to occur. With sustained abstinence, proper support, and new learning, the brain can heal and new, healthier patterns can replace the addiction pathways.

This framework also recognizes that addiction serves a function. People use drugs to solve problems—to cope with pain, escape trauma, manage stress, or fill a void in their lives. Effective treatment must address these underlying issues and help the person develop better solutions. Simply removing the drug without addressing why they needed it leads to relapse.

Why This Framework Matters for Treatment

Understanding addiction as learned behavior rather than chronic disease has profound implications for treatment approach and expectations.

Recovery is possible: Unlike the disease model's emphasis on lifelong management, the learned behavior model recognizes that complete recovery is achievable. People can and do fully recover from addiction, living free of cravings and without need for ongoing medication or treatment. This hope is essential for motivation and sustained effort.

Treatment should be comprehensive: If addiction is learned behavior serving a function, treatment must address the whole person—not just manage brain chemistry with medications. Effective treatment teaches new skills, addresses underlying trauma and issues, helps the person find meaning and purpose, and supports the development of a life worth living without drugs.

Time and support are essential: Learning new behavior patterns takes time. The brain doesn't heal overnight. This is why comprehensive programs lasting 3-6 months are more effective than short-term programs. The person needs time to unlearn old patterns and establish new ones, with support during the vulnerable early stages.

Personal responsibility matters: While acknowledging that brain changes make quitting difficult, the learned behavior model still emphasizes personal agency and responsibility. The person must actively engage in their recovery, make different choices, and commit to change. Treatment provides tools and support, but the individual must use them.

Medication is not the answer: If addiction is learned behavior, substitute drugs (methadone, Suboxone) don't address the root problem. They simply maintain drug dependence while the person remains stuck in the same patterns. Drug-free treatment that addresses underlying issues and teaches new coping skills is more likely to produce lasting recovery.

The Narconon Perspective

The Narconon program operates from a framework that aligns with the learned behavior model rather than the chronic disease model. This perspective shapes every aspect of the program.

Complete recovery is the goal: Narconon doesn't accept that people must remain "recovering addicts" forever. The goal is complete freedom from addiction—no cravings, no ongoing medication, no need for lifelong support groups. Many graduates achieve this and move on to build fulfilling lives without addiction being a central part of their identity.

Drug-free approach: Because addiction is not a disease requiring medication, Narconon uses no substitute drugs (methadone, Suboxone) or psychiatric medications. The program helps people withdraw naturally and supports the brain's innate healing capacity.

Addressing root causes: The program includes extensive work on identifying and resolving the underlying reasons the person turned to drugs. This might include unresolved trauma, inability to cope with life problems, lack of purpose, or other issues. By addressing these root causes, the person no longer needs drugs to cope.

Life skills training: A major component of the program involves learning new skills for handling life without drugs. This includes communication skills, problem-solving abilities, ethical decision-making, and personal responsibility. These new learned behaviors replace the old addiction patterns.

Sufficient time for change: The Narconon program typically lasts 3-6 months, providing sufficient time for the brain to heal and new patterns to become established. This aligns with the neuroscience of neuroplasticity and behavior change.

For Families: Why This Matters

Choosing Effective Treatment

Understanding the truth about addiction—that it's learned behavior involving real brain changes but not a chronic disease—helps families choose more effective treatment.

Avoid programs that emphasize lifelong medication management. If the program's goal is to keep your loved one on methadone, Suboxone, or psychiatric medications indefinitely, they're operating from the disease model and unlikely to produce complete recovery.

Look for programs that aim for complete freedom from all substances. Programs that believe full recovery is possible and work toward that goal are more likely to achieve it.

Seek comprehensive treatment that addresses underlying issues. If the program only focuses on stopping drug use without addressing why the person used drugs, relapse is likely.

Expect treatment to take time. Brain healing and behavior change don't happen in 28 days. Programs lasting 3-6 months align better with the actual timeline for recovery.

Maintaining Hope and Expectations

The disease model often creates hopelessness—if addiction is a chronic disease, the best you can hope for is management, not cure. The learned behavior model offers genuine hope: your loved one can fully recover and live free of addiction.

This hope should be balanced with realistic expectations. Recovery is possible but not easy. It requires sustained effort, time, and often multiple attempts. The brain changes are real and make quitting genuinely difficult. But difficult is not impossible.

Your loved one has the capacity to change, but they must choose to engage in that change process. You cannot force recovery, but you can support it by choosing effective treatment, setting appropriate boundaries, and maintaining hope even through setbacks.

Take Action Based on Truth

If someone you love is struggling with addiction, understanding the truth about what addiction really is—learned behavior that can be unlearned—helps you choose treatment that actually works.

Contact Narconon Africa:

  • Phone: +27 (0)800 014 559 (24/7 Confidential Support)
  • Website: www.narcononafrica.org.za
  • Location: Magaliesberg Mountains, North-West Province, South Africa

Don't settle for the disease model's promise of lifelong management. Don't accept that your loved one will always be an addict. Choose treatment that recognizes the truth: addiction is learned behavior that can be unlearned. Complete recovery is possible. Your loved one can be free.

Tony Peacock

Written by Tony Peacock

Addiction Recovery Advocate & Researcher

Tony Peacock overcame his own drug and alcohol addiction 32 years ago. After discovering drug-free recovery, he dedicated his life to helping South African families and addicts find real solutions that actually work. He created RehabNews.co.za to share research on effective, drug-free addiction treatment options available in South Africa.

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