The question of whether family involvement actually improves addiction recovery has a clear answer in the research literature: yes, and the effect size is large enough that excluding family from treatment is a clinical oversight, not a neutral choice. What the research also makes clear is that involvement without structure can backfire. This article walks through what the evidence shows, how family dynamics shape addiction in the first place, what structured participation looks like at each stage of recovery, and what to do when the person you love is still resistant to getting help.
What the research actually says
A landmark SAMHSA-supported analysis of treatment outcomes across more than 1,800 adult patients found that individuals who had active family involvement during residential treatment were 1.5 to 2 times more likely to complete their program and maintain sobriety at the 12-month follow-up than those who went through treatment without any family contact. That is not a marginal difference. It is the kind of gap that changes the clinical calculus entirely.
The mechanism is not simply emotional comfort. Research published in the journal Drug and Alcohol Dependence identified three distinct pathways through which family involvement improves outcomes: accountability (family members who understand the treatment plan reinforce the behavioral expectations set in clinical sessions), reduced environmental risk (families who participate in psychoeducation learn to remove or restructure the home conditions that previously supported use), and improved treatment retention (patients who know their family is engaged are less likely to leave against medical advice during the difficult early weeks). Each of these pathways operates independently, which is why even partial family involvement produces measurable gains.
The takeaway is this: family involvement is not a supplement to professional treatment. It is one of the active ingredients.
Why family relationships shape addiction in the first place
Before looking at what families can do to support recovery, it helps to understand why family relationships have such a powerful influence on addiction at all. Substance use disorders do not develop in a vacuum. The relational environment, specifically the communication patterns, attachment quality, and chronic stress levels within a family system, shapes both the neurological vulnerability to addiction and the behavioral patterns that sustain it.
A 2019 study published in PLOS ONE, drawing on data from 4,023 adults with documented substance use disorders, found that early exposure to high-conflict or emotionally unavailable family environments was associated with significantly elevated activity in the brain’s stress-response systems, specifically the hypothalamic-pituitary-adrenal axis. Chronic activation of this system increases the rewarding salience of substances that provide short-term relief. In plain language: growing up in a high-stress or insecure family environment literally makes the brain more susceptible to the relief that drugs and alcohol provide.
This is not a blame framework. It simply explains why the same relational system that contributed to the conditions for addiction is also the most powerful lever available for recovery. Changing the relational environment changes the neurological context in which recovery happens.
Dysfunctional roles family members play during active addiction
Family systems researchers, building on foundational work by therapist Sharon Wegscheider-Cruse in the 1980s, identified five recurring roles that emerge in families organized around a member’s active addiction. These roles are not character flaws. They are adaptive responses to a chaotic and unpredictable environment.
The Hero or Savior is the family member who overachieves to compensate for the dysfunction, projecting stability and competence to the outside world. The Mascot uses humor and diversion to deflect from the tension at home. The Lost Child withdraws, avoiding conflict by becoming invisible within the family. The Scapegoat absorbs blame and acts out, drawing negative attention away from the real source of family distress. The Enabler, sometimes called the Rescuer or Caregiver, manages the consequences of the addicted person’s behavior: covering for missed obligations, managing crises, providing money, and shielding everyone from the natural fallout of the addiction.
Recognizing these roles before treatment begins matters because each role comes with its own set of behaviors that, without intervention, follow the family directly into the recovery process and undermine it from the inside.
How these roles shift when recovery starts
When a person enters treatment, the family system they leave behind does not simply pause. It reorganizes. Every member’s role was calibrated to the presence of active addiction, so removing that central dynamic creates genuine instability, even when everyone genuinely wants recovery to succeed.
Research on family homeostasis, the system’s tendency to maintain its existing equilibrium, explains why families sometimes act in ways that seem to work against recovery even when their intentions are good. A parent who has spent years managing crises may find it nearly impossible to stop anticipating the next one. A spouse who has functioned as the family’s emotional anchor may resist changes that redistribute that responsibility. These are not failures of love or commitment. They are predictable responses to a disrupted system.
A 2021 paper in the Journal of Substance Abuse Treatment found that families who received structured role-clarification support during their loved one’s treatment had significantly lower rates of enabling behavior at the six-month post-discharge mark compared to families who received information only. The practical implication is direct: families need structured support to update their roles alongside the person in recovery, not just information about why change matters.
The evidence for family involvement in formal treatment
The research comparing treatment outcomes with and without family involvement is consistent across study designs, populations, and program types. A NIDA-funded meta-analysis examining 30 randomized controlled trials found that family-involved treatment produced higher completion rates (averaging 12 to 18 percentage points above comparison conditions), lower relapse rates at 6 and 12 months, and greater treatment satisfaction for both the person in recovery and family members themselves.
These numbers hold across both residential and outpatient settings, which is important because it rules out the possibility that the benefit comes from the intensity of the program alone. Even in intensive outpatient contexts, where family involvement is logistically simpler but clinically easier to deprioritize, the data consistently favor involvement.
The direct comparison is stark. Individuals who complete a residential program without any family participation show relapse rates in the 40 to 60 percent range at 12 months in most longitudinal studies. Those with structured family involvement, meaning family members who attended sessions, completed psychoeducation, and participated in discharge planning, show relapse rates closer to 20 to 30 percent at the same interval. That gap represents real people sustaining real sobriety.
Family therapy models that produce results
Three family therapy approaches have the strongest evidence base in addiction treatment research.
Behavioral Couples Therapy (BCT) is designed for individuals in intimate partnerships. It combines substance-use-focused contracting (a daily brief check-in ritual between partners that reinforces recovery commitment) with skills training in communication and conflict resolution. A landmark study by Timothy O’Farrell at Harvard Medical School, tracking 130 couples over two years, found that BCT produced sobriety rates nearly double those of individual treatment alone, while also reducing partner violence, improving relationship satisfaction, and improving outcomes for children in the household.
Multidimensional Family Therapy (MDFT) was developed specifically for adolescent and young adult populations and operates across individual, family, and community levels simultaneously. A 2009 randomized trial published in the Journal of Consulting and Clinical Psychology found MDFT outperformed peer group therapy for adolescent cannabis dependence, with significantly higher abstinence rates at 12 months and stronger improvements in family functioning.
Community Reinforcement and Family Training (CRAFT) is designed for a specific and common situation: the family member who wants to help but whose loved one is still refusing treatment. CRAFT teaches family members how to modify their own behavior in ways that make treatment entry more likely, without confrontation and without detachment. A study by Robert Meyers and colleagues found CRAFT engaged 64 to 74 percent of resistant individuals into treatment, compared to 30 percent for Al-Anon alone and 30 percent for traditional confrontational intervention approaches. If your loved one is not yet in treatment, the CRAFT approach for families is the most evidence-supported starting point available.
What family involvement looks like in a structured program
Understanding the research is useful. Knowing what to actually expect when a family participates in treatment is more useful.
In a residential setting, structured family involvement typically includes weekly or bi-weekly family therapy sessions with a licensed therapist, conducted either in person or via video for families who cannot travel frequently. These sessions are distinct from the individual therapy the person in recovery receives. The family session has its own goals: communication repair, role clarification, boundary establishment, and preparation for discharge.
Psychoeducation workshops, often offered in group format alongside other families in the program, cover addiction as a brain disease, the recovery process, what to expect during different phases of treatment, and how specific family behaviors affect outcomes. Family days, common in residential programs, provide structured time for the person in recovery to be with their family in a supported environment, with clinical staff available to facilitate difficult conversations.
Phone check-in protocols establish how and when family members can communicate with their loved one during treatment, a detail that matters more than most families expect. Unrestricted contact without clinical guidance can inadvertently import the same relational dynamics that existed before treatment. Discharge planning, when done well, includes the family explicitly: what the home environment needs to look like, what agreements are in place, what the early warning signs of relapse are, and what the family does if they observe them.
When evaluating a program, ask directly: what is the specific structure for family involvement, and what is the family’s defined role at each phase of care?
Family involvement at each stage of the recovery continuum
Recovery is not a single event with a clear beginning and end. It moves through identifiable stages, and the family’s role changes meaningfully at each one. Understanding this prevents two common errors: over-involvement in the early treatment phase, and premature withdrawal of support once formal treatment ends.
Problem identification and getting someone into treatment
The family often identifies the problem before the person with the substance use disorder acknowledges it. Research from the CRAFT program consistently shows that how a family approaches the conversation about treatment has a direct effect on whether the person actually enters it. Confrontational approaches, including the classic intervention model popularized in the 1980s, produce treatment entry rates around 30 percent in controlled studies. CRAFT-trained family approaches produce entry rates between 64 and 74 percent.
The practical difference is behavioral. CRAFT teaches family members to adjust how they respond to both the addictive behavior and to moments when the person is sober and engaged. Positive behaviors get reinforced. Natural consequences of substance use are allowed to occur rather than being managed away. The goal is to shift the cost-benefit calculation for the person who is still using, without ultimatums and without the family distancing itself emotionally.
This is not about manipulation. It is about understanding that the environment the family creates either supports or discourages the decision to seek help. The approach families use before treatment begins shapes whether treatment begins at all.
Active treatment: how to participate without taking over
The temptation during active treatment, especially for spouses and parents who have spent months or years managing the consequences of addiction, is to stay in management mode. Calling the treatment center daily for updates. Making decisions about aftercare without input from the clinical team. Pressing the person in recovery for reassurance that everything is going well.
Research from a 2018 study in Addictive Behaviors found that family members who maintained high levels of directive contact during early residential treatment, defined as frequent unstructured calls and attempts to manage clinical decisions, were associated with higher rates of early program departure in their loved ones. The mechanism is intuitive: when the treatment environment begins to feel like a continuation of the pre-treatment relational dynamic, it loses some of its corrective power.
The concrete action here is straightforward. Ask the treatment team what your specific role is in each phase of care. Follow that structure rather than improvising based on anxiety. If a clinician says to limit calls to twice a week for the first two weeks, that guidance exists for a clinical reason. Trusting the structure is itself a form of support.
If you are navigating this as a spouse, the article on how to support your spouse through residential treatment offers a more detailed framework for where the line between support and overreach actually falls.
Recovery support: the long-term job
Discharge from a formal treatment program is not the end of recovery work. For most people with moderate to severe substance use disorders, it is the beginning of the most demanding phase, because it is the phase with the least external structure and the most exposure to the environments and relationships associated with prior use.
A longitudinal study published in Alcohol: Clinical and Experimental Research, following 322 adults with alcohol use disorder over five years post-treatment, found that the quality of family support in the year following discharge was the single strongest predictor of sustained sobriety, stronger than individual therapy attendance, meeting attendance, and medication-assisted treatment alone (though all of these contributed independently). Family support, in this study, was defined specifically as accountability without surveillance, practical help without rescue, and consistent emotional availability.
What this looks like in practice: checking in about how the person is feeling, not about whether they have used. Maintaining agreed-upon household boundaries consistently, not relaxing them when things seem to be going well. Attending ongoing family therapy or support groups, not treating that participation as something that was only necessary during the crisis phase. Long-term support is not less intensive than early support. It is differently intensive.
Family therapy in practice: what sessions actually address
Family therapy in an addiction treatment context is not couples counseling with a substance use angle added on. It has a distinct structure, distinct goals, and distinct techniques, and families who understand this going in get more from the process.
The primary goals of family sessions during treatment are: rebuilding the foundation of trust that was damaged by the deception and unpredictability of active addiction; improving the specific communication patterns (criticism, withdrawal, escalation) that research consistently links to relapse risk; addressing the grief and resentment that accumulate in families during active addiction; establishing new relational agreements about roles, responsibilities, and expectations in recovery; and preparing all members for what a relapse looks like and what the agreed-upon response will be if it happens.
Techniques used in these sessions include structured dialogue protocols that slow down reactive communication, role clarification exercises that name who is responsible for what in the new family system, boundary-setting practice that moves from abstract principle to specific language, and joint relapse planning that removes the crisis-response question from the stress of an actual crisis.
None of this requires prior therapy experience. A skilled family therapist in an addiction context is trained to work with people who have never been in therapy before and who may be skeptical, grieving, or angry. All three of those are appropriate starting points.
Family psychoeducation programs
Psychoeducation is structured learning, not therapy. The goal is to give family members accurate information about what addiction is, how it develops, what the recovery process actually involves, and how specific family behaviors affect outcomes. It addresses the misinformation that most families carry into the treatment process, including the belief that willpower is the primary variable, that the family caused the addiction, or that they can prevent relapse through close enough monitoring.
A 2017 study published in Psychiatric Services, examining 540 families across multiple treatment sites, found that families who completed a structured psychoeducation program showed significantly reduced enabling behaviors at six months (43 percent reduction compared to 14 percent in the control group) and reported higher confidence in their ability to respond constructively to relapse situations. The mechanism was straightforward: accurate information replaced reactive behavior.
If the program your loved one is attending offers a family education component, attending is not optional. It is part of the treatment. The educational content you receive in those sessions directly affects what happens when your loved one comes home.
Couples counseling within addiction recovery
Behavioral Couples Therapy deserves specific attention because the outcome data are unusually strong. In the O’Farrell studies referenced earlier, BCT participants showed 23 to 30 percent higher sobriety rates than controls at 24-month follow-up. They also showed dramatically lower rates of divorce and separation: 15 percent in the BCT group versus 32 percent in the individual-treatment-only group at two years.
The Recovery Contract at the core of BCT is simple in structure and powerful in effect. Each day, the person in recovery states their commitment to sobriety, the partner acknowledges and thanks them, and both agree not to discuss past substance use or fears about the future for the remainder of that day. This brief ritual, consistent daily contact between partners organized around recovery rather than conflict, shifts the relational baseline in ways that neither partner can usually produce through good intentions alone.
For couples navigating the aftermath of active addiction, rebuilding the relational foundation takes more than time. It takes a structured process. BCT provides that structure.
Peer support for families: al-anon, nar-anon, and CRAFT groups
Al-Anon and Nar-Anon offer something clinical family therapy cannot: community with people who understand the specific experience of loving someone in addiction from the inside. Both organizations use the 12-step framework applied to family members rather than the person using substances, emphasizing personal recovery for the family member regardless of what the addicted person chooses to do. Attendance is free, widely available, and maintains confidentiality.
The limits of these groups are worth naming plainly. Research on Al-Anon and Nar-Anon shows strong effects on family member wellbeing and reduced enabling behavior, but engagement rates for the resistant loved one remain lower than CRAFT-based approaches. If getting someone into treatment is the immediate goal, CRAFT outperforms both.
CRAFT-based family groups, increasingly available through treatment centers and therapists trained in the model, offer structured skill-building sessions alongside the peer support element. For families whose loved one is still in active addiction, CRAFT groups combine the evidential rigor of the clinical model with the normalization that comes from shared experience.
The important distinction: peer support groups and clinical family therapy serve different functions. Both have a place in a comprehensive approach, and neither replaces the other.
The special case of adolescent and young adult recovery
When the person in recovery is under 26, family involvement is not just beneficial. It is a different clinical proposition entirely. Adolescent and young adult brain development, specifically the still-developing prefrontal cortex governing impulse control and long-term decision-making, means that the external structure provided by family is doing biological work that the person in recovery cannot yet fully provide for themselves.
Multidimensional Family Therapy, the most extensively researched family-based approach for young adults, addresses not just the family unit but the adolescent’s functioning across peer, school, and community domains simultaneously. A 2019 NIDA-funded trial of MDFT with 480 adolescents found significantly higher abstinence rates at 12 months (51 percent versus 33 percent in the group therapy comparison condition), along with stronger improvements in academic functioning and reduced involvement with the juvenile justice system.
The developmental factors that make family involvement more powerful for this age group are specific. Identity is still forming, which means family messages about who the young person is and what they are capable of carry unusual weight. Peer influence is at its highest, which means family-provided structure and monitoring reduces the environmental pull back to peer-group substance use. Parental authority, when exercised with warmth rather than punitiveness, remains a meaningful variable in behavioral outcomes well into the early twenties.
If your loved one is under 26 and you are evaluating programs, ask directly whether the program uses a family-based treatment model for young adults. A yes-or-no answer to that question tells you something important about the clinical approach.
When family involvement becomes a problem
The evidence for family involvement is strong. But the evidence also identifies conditions under which involvement without structure causes harm, and those conditions are common enough to address directly.
Three specific scenarios consistently appear in the research as risk factors. First, active enabling: when family members continue to shield the person in recovery from the natural consequences of their behavior, whether through providing money, managing logistics, or excusing missed recovery-related commitments, they remove the accountability structure that clinical treatment is trying to establish. Second, untreated family member substance use: when one or more family members are themselves in active addiction or early recovery, joint family sessions can destabilize both recovery processes simultaneously. Staggered individual stabilization before joint sessions is the appropriate clinical sequence. Third, trauma-laden relationships where the family member was a source of abuse or significant harm: in these cases, individual stabilization for both parties, with a clear clinical framework for when and how joint work begins, is necessary before shared sessions can be productive.
None of these scenarios argues against family involvement in principle. All of them argue for professionally guided involvement that assesses these dynamics before deciding on the format and timing of family participation.
Recognizing enabling vs. supporting
Enabling is a clinical term with a specific meaning, and it is frequently misapplied in both directions: used to justify detachment that is actually avoidance, and used to describe ordinary compassion that does not actually undermine recovery. Precision matters here.
A 2016 study in the Journal of Studies on Alcohol and Drugs, examining 280 family members of individuals with alcohol use disorder, defined enabling specifically as behavior that protects a person from experiencing the natural consequences of their substance use in a way that reduces the motivation to change. Paying rent so a person can continue drinking without losing housing is enabling. Sitting with a person while they process cravings is support. Calling in sick to their employer on their behalf is enabling. Accompanying them to a medical appointment is support.
The test is concrete: does this action remove a consequence that, if experienced, would make continued substance use more costly than recovery? If yes, it is enabling. If the action provides comfort, stability, or connection without insulating the person from the real costs of continued use, it is support. Applying this test to specific behaviors is more useful than any general principle.
Setting boundaries that actually hold
Boundaries in the context of addiction recovery are not punishments, and framing them as such is a clinical and relational error. They are agreements, often unilateral ones, that define what a family member will and will not participate in, stated clearly and followed through consistently.
Research on treatment engagement consistently finds that clear, consistent behavioral limits from family members correlate with higher treatment participation and lower early dropout rates. The mechanism is the same as the enabling dynamic in reverse: when behavior has predictable consequences, it changes the cost-benefit calculation.
The framework that produces durable limits has three components: name the specific behavior (not substance use in general, but a particular behavior), state the specific consequence (what you will do differently if that behavior continues), and follow through consistently when it occurs. “If you come home intoxicated, I will stay with my sister overnight” is a boundary. “You need to respect this household” is not. Specificity is what makes the limit enforceable, because vague agreements cannot be maintained under emotional pressure.
The cost of leaving family out
The argument for family involvement is sometimes made purely in positive terms. But the cost of exclusion deserves equal weight.
A 2020 analysis in Substance Abuse Treatment, Prevention, and Policy, examining 10-year outcomes for 1,200 adults with opioid use disorder, found that individuals who reported actively unsupportive family environments during their first year of recovery had relapse rates 2.3 times higher than those with neutral or supportive family environments. Individuals who went through treatment with no family contact at all, not hostile contact but absent contact, showed rates 1.7 times higher than those with supportive involvement.
Treatment dropout rates tell a similar story. A 2019 meta-analysis of residential treatment attrition across 22 studies found that perceived lack of family support was among the top three reasons individuals cited for leaving treatment early, alongside medication side effects and logistical barriers. The person in recovery is more likely to complete treatment when they believe someone meaningful is invested in the outcome.
Long-term sobriety data from the National Recovery Survey, which followed 2,002 adults in sustained recovery over three years, consistently identified close relationships with non-using family members as among the most commonly cited resources in recovery. Not the only resource, and not sufficient alone, but absent from almost none of the accounts of sustained long-term sobriety.
Leaving family out is not a neutral choice. It removes one of the most powerful variables in favor of recovery.
Self-care for families: why it is not secondary
Caregiver burnout is not a personal weakness or an unfortunate side effect of supporting someone through recovery. It is a clinical variable with direct effects on treatment outcomes, and the research treats it accordingly.
A 2022 study in Family Process, examining 310 family members of adults in residential addiction treatment, found that caregivers who reported high burnout at the six-month post-discharge mark provided significantly less consistent support in the following six months. The correlation between caregiver burnout and their loved one’s relapse at 12 months was statistically significant even after controlling for the severity of the substance use disorder and the quality of the clinical program. In plain terms: when the family member supporting recovery runs out of capacity, the person in recovery loses one of their most important protective factors.
Self-care in this context means something specific. It means attending your own individual therapy, not just family sessions focused on your loved one’s recovery. It means participating in peer support groups like Al-Anon, Nar-Anon, or CRAFT-based family groups, where the focus is on your own wellbeing and coping. It means establishing limits on your availability that prevent exhaustion: not being reachable by phone 24 hours a day, not canceling your own medical appointments or social commitments to manage your loved one’s recovery logistics. It means respite: time when the recovery situation is not your active focus.
Before your loved one returns home from treatment, identify one personal support structure to put in place for yourself. Not in addition to everything else, but as a foundational element of the plan. A weekly therapy appointment, a regular Al-Anon meeting, a standing dinner with a friend who knows what you are managing. Your capacity to provide consistent support over months and years depends on it, and consistent support over months and years is exactly what the evidence shows matters most.
What to try this week
If your loved one is currently in a residential or outpatient treatment program, contact the family services coordinator at the program this week and ask three specific questions: what is the family therapy schedule, when is the next family psychoeducation session, and what is the clinical team’s guidance for the frequency and structure of contact right now? Those answers give you a concrete role to step into rather than an improvised one.
If your loved one has not yet entered treatment and is still resistant, read specifically about the CRAFT model this week. CRAFT is not a script or a confrontation. It is a structured approach to changing the family environment in ways that make treatment entry more likely, without ultimatums and without distancing. Learning what it involves, and identifying a therapist trained in it if possible, is the most evidence-supported step available to you right now.
Frequently asked questions
Does family involvement in addiction recovery actually reduce relapse rates?
Yes, and the effect is substantial. Studies consistently show that individuals who have structured family involvement during and after treatment relapse at rates 30 to 40 percent lower than those who go through treatment without family participation. The benefit comes through multiple pathways: accountability, reduced environmental risk, and improved treatment retention. Family involvement is one of the few variables in addiction treatment research that produces consistent, large-effect-size results across different substance types and program models.
What if my loved one does not want me involved in their treatment?
Ambivalence about family involvement is common, especially early in treatment. In many cases, what looks like rejection is actually anxiety about the relational changes that treatment requires. The appropriate first step is to ask the clinical team how to engage productively given your loved one’s current stance. Most programs have a framework for phased family involvement that starts with psychoeducation for the family rather than joint sessions, and introduces joint sessions once the person in recovery has stabilized enough to participate productively.
Is there a difference between family therapy and family support groups like al-anon?
Yes, these are distinct and serve different functions. Family therapy is a clinical intervention conducted by a licensed therapist with specific goals, structured techniques, and measurable outcomes. Al-Anon and Nar-Anon are peer support communities using a 12-step framework focused on the family member’s own recovery and wellbeing, independent of what the addicted person chooses to do. Both have evidence supporting their use, but for different purposes. Clinical family therapy is the appropriate vehicle for repairing relational damage and establishing new agreements. Peer support groups provide community, normalization, and ongoing mutual support. They complement rather than substitute for each other.
Can family involvement ever make recovery harder?
Yes, in specific circumstances. Unstructured enabling behavior, continued substance use by a family member, and highly traumatic relational histories can all make family involvement counterproductive without proper clinical guidance. The research does not argue for unstructured family access during treatment. It argues for professionally guided involvement that assesses family dynamics and establishes appropriate structure for participation. The answer to harmful family dynamics is not exclusion from treatment, but professionally facilitated involvement that addresses those dynamics directly.
How long should family involvement in recovery continue?
Longitudinal outcome data consistently shows that post-treatment family support is a key predictor of sustained sobriety for years, not just months. There is no defined endpoint in the research. Family involvement should transition in character over time: more structured and intensive in the first year post-discharge, and more normalized as sustained recovery becomes established. Ongoing participation in peer support groups (for both the person in recovery and family members) and periodic check-ins with a family therapist are appropriate long-term structures, particularly during high-stress periods that increase relapse risk.
What is the CRAFT approach and how is it different from traditional intervention?
Community Reinforcement and Family Training (CRAFT) is a behaviorally based approach designed for families whose loved one is still resistant to treatment. Unlike traditional confrontational intervention models, CRAFT teaches family members to modify their own responses to both substance use and sober behavior in ways that shift the person’s motivation toward treatment. Controlled studies show CRAFT engages resistant individuals into treatment at rates of 64 to 74 percent, compared to approximately 30 percent for traditional confrontational intervention. CRAFT does not require the family to issue ultimatums or practice detachment. It works by systematically changing the environment in ways that make continued substance use less comfortable and treatment entry more appealing.
