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Understanding the Stages of Addiction

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Intro
Do you or a loved one wonder whether substance use has progressed past recreational use? You’re certainly not alone. Addiction generally doesn’t happen suddenly. Its development occurs slowly, often without awareness of how much it’s progressed.  The National Institute on Drug Abuse (NIDA) defines addiction as a chronic brain disease that changes reward, motivational, and memory systems in the brain, making it extremely difficult to stop the substance use regardless of negative consequences.[1] Addiction is one of the most common mental illnesses in the United States, affecting millions of Americans every day. According to the Substance Abuse and Mental Health Services Administration (SAMHSA), in 2024, 168 million people over the age of 12 used an illicit drug in the past month.[2]

Understanding the stages of addiction can provide one of the greatest opportunities for early intervention. When families and individuals can identify what they’re experiencing, they can respond with empathy rather than confusion. 

Key Points
  • Addiction is a progressive and chronic illness of the brain, developing over time as it advances through several stages.
  • Experts have identified anywhere from 4 to 7 stages of addiction, but all share a similar trajectory from the first use of a substance, to habitual use, dependency, and ultimately to requiring treatment.
  • Identifying the early phases of addiction enables families and individuals to get help sooner rather than later, when the condition has reached an advanced state.
  • Rates of relapse (approximately 40% to 60%) for addiction are similar to those for chronic illnesses like asthma and type 2 diabetes. Relapse should be viewed as an inherent part of the illness, not a measure of an individual’s success.
  • Recovery from addiction is attainable at any stage of the addiction process, provided the individual receives adequate professional treatment, support, and utilizes effective self-help techniques.

The Stages of Addiction

One of the most frequently asked questions people ask regarding addiction is: how many stages of addiction are there? The truth is that it depends on which model you reference. There are several classifications, but here are the most common stages of addiction.[3]

  • Four-stage model: experimentation, regular use, high-risk use, and addiction or dependency.
  • Five-stage model: first use, regular use, risky use, dependence, and addiction.
  • Six-stage model: initial use, misuse, tolerance, dependence, addiction, and relapse.
  • Seven-stage model: initial use, experimentation, regular use, risky use, dependence, addiction, and crisis or treatment.

While each model above uses different terminology, they each represent a similar continuum: an incremental progression from first exposure to problematic use and ultimately to the requirement for treatment. For the remainder of this article, we’ll use the six-stage model because it provides a detailed yet easy-to-follow framework for understanding how addiction develops over time. 

Stage 1: Initial Use

The first stage often starts with curiosity, peer influence, or as a way to alleviate anxiety and stress or enhance confidence. For some individuals, this initial use may occur due to being prescribed medication. For others, this first exposure occurred at a social event or gathering. Factors contributing to an increased likelihood of progressing through this first encounter include: history of substance use in family members, a peer culture that is permissive, trauma, and co-existing mental health issues.[4]

Please keep in mind that not all individuals who experiment with substances will eventually develop an addiction. Protective factors such as supportive relationships, healthier coping mechanisms, and education can prevent progression from the first stage.

Stage 2: Established Use

This stage denotes established or repeated use. Early indicators of this stage include consuming substances by itself, rationalizing or justifying the use, and ignoring obligations related to employment, school, or home life.[5] Risk-taking behaviors such as driving while intoxicated may also emerge.

Some treatment experts merge experimentation and regular use into one stage, whereas others divide them into separate categories. Regardless of categorization, both frequency and degree of psychological dependency are increasing.

Stage 3: Hazardous Use

Hazardous use is characterized by consuming substances in manners that cause harm. Examples include ingesting greater quantities of drugs, using multiple substances simultaneously, using medications that were originally prescribed for another purpose, and so on. Someone using substances in harmful ways might continue to appear functional day-to-day, but cracks begin to emerge. Relationships appear strained, work and school performance decreases, irritability and mood swings become apparent.[6] 

The brain adapts behind-the-scenes, and dopamine pathways responsible for releasing natural chemicals associated with normal satisfaction and reward are increasingly reliant on the substance used. When the substance is not available, cravings and irritability ensue.

Stage 4: Tolerance and Dependency

Tolerance develops when the body needs more of the substance to elicit the desired effects achieved by lesser amounts initially consumed. [7] This usually results in higher dosages and frequency.

There are two types of dependencies. Physical dependency causes withdrawal symptoms (e.g., nausea, sweating, shaking) when stopping use. Psychological dependency is comprised of extreme cravings and inability to derive gratification from activities without using substances. Dependency does not necessarily signify addiction. An individual can be physically dependent on asthma medication to breathe without being addicted to it. The distinction lies in compulsively continuing substance use despite obvious harm.

Stage 5: Addiction and DSM-5 Criteria

Addiction, also referred to as substance use disorder, is a recognized mental health condition. The Diagnostic and Statistical Manual, Fifth Edition (DSM-5) lists diagnostic criteria for substance use disorder, including:

  • Consuming more than you intended
  • Unable to cut down or stop
  • Spent excessive time acquiring or consumption of substance
  • Neglected responsibilities, work, social, or academic commitments
  • Experienced strong cravings
  • Continued substance use despite negative consequences
  • Engaged in hazardous situations while under influence
  • Tolerance developed
  • Withdrawal symptoms appeared upon discontinuing consumption

Substance use disorders are categorized according to severity (mild, moderate, or severe) based on how many criteria are met.[8]

Addiction is not morally based; it is a disease affecting behavior and neurochemistry. Frequent characteristics exhibited by addicts include:

  • Loss of interest in previously enjoyable activities or hobbies
  • Persistent relationship issues
  • Financial difficulties
  • Concealing usage from loved ones, meaning those who know you

Stage 6: Relapse and Recovery

Relapse is extremely common among chronic conditions and equally so with addiction. Relapse should be viewed less as evidence of failure and more as an indication that treatment requirements need reassessment.

Treatment or Recovery

The treatment or recovery stage begins when an individual recognizes the necessity for assistance. Treatment typically commences with medical detoxification, when healthcare providers assist clients with managing withdrawal symptoms safely using pharmacological agents.

This is combined with alternative mental health treatments (cognitive behavioral therapy, or CBT, a type of psychotherapy focusing on identifying and altering maladaptive behaviors, and dialectical behavior therapy, or DBT, a type of psychotherapy assisting clients in managing overwhelming emotions and intense behaviors).[9]

Understanding Addiction as a Chronic Illness

Chronic diseases are those that last for a minimum of twelve months or longer, require ongoing medical treatment, and although they may not be curable, can typically be well-managed.[10] With addiction, “chronic” refers to persistent drug or alcohol dependence that often includes episodes of abstinence followed by relapse. 

Addiction fits into this same category for a number of reasons: repeated substance use permanently alters the structure and function of the brain’s reward systems, and these alterations can remain even after the individual stops using substances. 

Researchers at NIDA explain that relapse rates for drug or alcohol dependence fall somewhere between 40-60 percent.[11] These figures are similar to relapse rates associated with asthma (50-70 percent) and type 2 diabetes (30-50 percent). This comparison is important because it helps reframe our understanding of addiction. The word “chronic” does not indicate hopelessness — with continued treatment and self-care management, long-term recovery is achievable.

Factors That Can Affect How Addiction Develops

Numerous variables determine the speed at which an individual transitions through stages:

  • Environmental factors: family environment, availability and accessibility to substances, exposure to trauma or prolonged stressors.
  • Biological and genealogical variables: genetic predispositions, differences in brain chemistry (specifically regarding dopamine processing).
  • Psychiatric conditions: depression, anxiety, ADHD, and other psychiatric conditions often coexist with substance misuse, and self-medicating can exacerbate co-occurring disorders.
  • Social and cultural variables: peer pressure, societal norms, marketing.
Stages of Change

Readiness for Recovery

Decisions

Making Informed Decisions About Your Well-Being

If you notice early warning signs in yourself or someone you care about, gentle conversation can open the door. Seeking a professional evaluation provides clarity about what stage someone may be in and what level of care fits best.  Building a support network of family, friends, and peer groups makes recovery more sustainable. Evidence-based treatment, which is the practical application of the findings of the best available current research, combines therapy, medication when appropriate, and holistic care.

Overcome the Stages of Addiction with Agape Detox Center

Addiction is a chronic, multi-stage condition, and every person’s path through it looks a little different. The good news is that recovery is possible at any stage. At Agape Detox Center in Port St. Lucie, Florida, we walk with adults through every step of this process with compassion, clinical expertise, and genuine care. We offer various programs and services, including drug detox, alcohol detox, inpatient treatment, and outpatient treatment.  If you recognize yourself or someone you love in these stages, please reach out. Early recognition and the right support can change everything.

FAQ

What is the first stage of addiction?

How do I know if I am dependent or addicted?

Can someone recover from addiction without going through every stage?

Is relapse a sign that treatment failed?

Sources

[1] [9] [11] National Institute on Drug Abuse. (2020). Drugs, brains, and behavior: The science of addiction: Drug misuse and addiction. National Institutes of Health. https://nida.nih.gov/publications/drugs-brains-behavior-science-addiction/drug-misuse-addiction 

[2] Substance Abuse and Mental Health Services Administration. (2025). Highlights for the 2024 National Survey on Drug Use and Health. https://www.samhsa.gov/data/sites/default/files/NSDUH%202024%20Annual%20Release/2024-nsduh-nnr-highlights.pdf

[3] [4] [5] [6] Berger, F. K. (2024, May 4). Substance use disorder. MedlinePlus Medical Encyclopedia. National Library of Medicine. https://medlineplus.gov/ency/article/001522.htm 

[7] Centers for Disease Control and Prevention. (n.d.). What is addiction? https://www.cdc.gov/overdose-prevention/hcp/training-modules/treatment/page33957.html 

[8] American Psychiatric Association. (2013). Substance-related and addictive disorders. https://www.psychiatry.org/File%20Library/Psychiatrists/Practice/DSM/APA_DSM-5-Substance-Use-Disorder.pdf 

[10] Centers for Disease Control and Prevention. (2026, April 29). About chronic diseases. https://www.cdc.gov/chronic-disease/about/index.html  

[12] Prochaska, J. O., & Velicer, W. F. (1997). The transtheoretical model of health behavior change. American Journal of Health Promotion, 12(1), 38–48. https://doi.org/10.4278/0890-1171-12.1.38