Drug Addiction as a Disease: Brain Changes and Treatment
This paper argues that drug addiction should be classified and treated as a disease rather than a moral failing or criminal behavior. It examines how drugs permanently alter brain chemistry by hijacking the dopamine reward system, making compulsive use fundamentally different from ordinary habit. The paper contrasts rehabilitation with punitive approaches, citing research on the effectiveness of treatment in criminal justice settings. It also addresses the genetic heritability of addictive disorders and the role of environmental factors such as poverty and lack of opportunity. The paper concludes that treating addiction as a disease is both scientifically justified and practically more effective at reducing drug use and related social harms.
- Introduction: Addiction and the Brain: Drugs permanently alter brain dopamine reward systems
- Rehabilitation vs. Punishment: Treatment outperforms incarceration for addiction outcomes
- Genetic Heritability and Susceptibility: Genetics significantly influence addiction vulnerability
- Responsibility, Environment, and Social Factors: Disease model preserves personal and societal responsibility
- Treatment Effectiveness and Conclusion: Meta-analyses confirm treatment reduces drug use effectively
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What makes this paper effective
- Directly engages a counterargument (Lee's habit analogy) early, sharpening the thesis from the outset.
- Balances scientific evidence (neurochemistry, genetics) with policy arguments (rehabilitation vs. incarceration), giving the essay both empirical grounding and practical relevance.
- Avoids overstating its position — acknowledges that viewing addiction as a disease does not eliminate personal responsibility, which adds intellectual honesty and credibility.
Key academic technique demonstrated
The paper uses a multi-pronged evidentiary approach: neurological research on dopamine, meta-analyses of treatment outcomes, and heritability studies are each marshaled as independent lines of support for the same central claim. This convergent evidence strategy is effective in persuasive academic writing because no single point bears the full argumentative weight.
Structure breakdown
The essay opens with brain chemistry to establish the biological basis of addiction, then moves to policy utility (why punishment fails), then to genetic evidence, then to a nuanced discussion of responsibility and environmental causes, and finally to treatment efficacy data. Each paragraph advances a distinct sub-argument while remaining tightly connected to the disease-model thesis.
Introduction: Addiction and the Brain
While drug addiction may not bring about obvious physical changes like some diseases, it still causes permanent changes to the brain. Drugs circumvent the natural system of rewards generated by the brain, whereby performing a pleasurable action causes a release of dopamine. "The natural capacity to produce dopamine in the reward system is reduced, while the need persists and the drug seems to be the only way to fulfill it. The brain is losing its access to other, less immediate and powerful sources of reward. Addicts may require constantly higher doses and a quicker passage into the brain" ("The addicted brain," 2009).
Contrary to Hojung Lee's suggestion, addiction is not really analogous to a habit, despite the fact that it is often called that (as in "he has a drug habit"). The compulsion to use is irresistible to the addict, which is why addicts will sacrifice jobs, family commitments, and even personal comfort to use their drug of choice. It is not a habit like brushing your teeth or getting up at a particular hour of the morning. A habit can be postponed or altered if circumstances dictate it, or if there is a logical reward that benefits the person to change it. That is not the case with drug addiction.
Rehabilitation vs. Punishment
Another important point in favor of treating addiction like a disease is one of utility. If addicts are not deterred by the loss of their jobs, homes, or spouses — even their children in some instances — the deterrent of prison is unlikely to convince them to alter their behaviors. Viewing addiction as a crime rather than a disease calls upon the legal system to punish it with incarceration rather than rehabilitation. As research has shown, "interventions include therapeutic alternatives to incarceration, treatment merged with judicial oversight in drug courts, and prison- and jail-based treatments" (Chandler, Fletcher, & Volkow, 2009). Research over the last two decades has consistently reported the beneficial effects of treatment for drug abusers within the criminal justice system.
Genetic Heritability and Susceptibility
Also supporting the concept of addiction as a disease is the fact that heritability appears to play a major factor in the development of addiction. "Family, adoption, and twin studies reveal that an individual's risk tends to be proportional to the degree of genetic relationship to an addicted relative. Heritabilities of addictive disorders range from 0.39 for hallucinogens to 0.72 for cocaine" (Bevilacqua & Goldman, 2009). Research into the genetics of addiction continues to illuminate how biological predisposition interacts with environmental exposure. While proximity to drugs in the environment and socioeconomic status are also clearly factors, some individuals have a greater susceptibility to those influences — much like certain genes make people more likely to develop cancer or diabetes, even though environment plays a role in those diseases as well.
References
The addicted brain. (2009). Harvard Mental Health Letter. Retrieved from http://www.health.harvard.edu/mind-and-mood/the_addicted_brain
Bevilacqua, L., & Goldman, D. (2009). Genes and addictions. Clinical Pharmacology & Therapeutics, 85(4), 359–361. Retrieved from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2715956/
Chandler, R., Fletcher, B., & Volkow, N. (2009). Treating drug abuse and addiction in the criminal justice system: Improving public health and safety. JAMA, 301(2), 183–190.
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