ACT therapy for addiction focuses on helping people change their relationship to thoughts, emotions, and cravings rather than trying to eliminate them.
Instead of relying on avoidance or short-term relief, Acceptance and Commitment Therapy (ACT) builds the ability to tolerate discomfort and take action based on what matters. When that shift happens, relapse risk tends to decrease over time.
Many people struggling with substance use are not trying to feel good.
They are trying to feel less.
Less anxious. Less overwhelmed. Less stuck in their own head.
Substance use often begins as a solution. It reduces intensity, quiets thoughts, and creates distance from pain. It works in the short term.
Over time, that same pattern becomes restrictive. The range of emotions that feel tolerable narrows. The ability to sit with discomfort decreases. The reliance on substances increases.
ACT therapy addresses this cycle by focusing on how people relate to their internal experiences rather than trying to remove those experiences entirely.
Written by: Emma McGovern, MS, LCMHC, ATR
What Is Acceptance and Commitment Therapy (ACT)?
Acceptance and Commitment Therapy (ACT) is an evidence-based approach that helps people develop psychological flexibility—the ability to experience thoughts, emotions, and internal discomfort without being controlled by them.
ACT is used across a wide range of mental health concerns, including anxiety, depression, trauma, and substance use.
Rather than focusing on eliminating symptoms, ACT focuses on:
- Accepting internal experiences without avoidance
- Noticing thoughts without getting pulled into them
- Reducing reactivity to emotions and urges
- Taking action based on personal values
At its core, ACT is about changing how you relate to your internal experience instead of trying to rid yourself of unpleasant internal experiences.
That shift becomes especially relevant in addiction.
Substance use is often tied to the need to escape or control uncomfortable thoughts, emotions, or sensations. When those experiences feel intolerable, the pull toward relief becomes stronger.
ACT addresses this directly by increasing the ability to tolerate discomfort without needing to act on it. We cannot stop ourselves from having uncomfortable experiences and trying to stop them is a recipe for creating more distress.
That’s where it becomes useful in reducing relapse risk.
Trying to Eliminate Discomfort Makes Recovery Harder
To not feel anxiety is a dead man’s wish.
Discomfort is part of being human. Anxiety, sadness, uncertainty, self-doubt—these are not signs that something is wrong. They are part of how we experience life.
The problem isn’t that discomfort shows up. That can’t be helped. The problem is trying to control or eliminate discomfort.
When discomfort becomes something that has to be controlled, avoided, or eliminated, a pattern starts to form. Energy gets directed toward trying to push thoughts and emotions away, manage them, or outthink them.
That effort becomes exhausting and consuming. A useful way to think about this is like being caught in a rip current.
The instinct is to fight it—to swim directly against it, to try to force your way back to shore as quickly as possible.
That effort burns energy quickly. The harder you fight, the more exhausted you become, and the harder it is to stay afloat.
The safer response is different. It involves allowing the current to move, conserving energy, and adjusting how you respond rather than trying to overpower it.
Internal experiences work in a similar way.
The more you fight anxiety, cravings, or difficult emotions, the more intense and consuming they tend to become.
ACT shifts the focus away from fighting those experiences and toward learning how to move with them differently.
That shift reduces the energy spent on resistance and avoidance and increases the ability to respond in a more flexible, intentional way.
Why Substance Use Is Closely Tied to Avoidance
At the center of many addiction patterns is a consistent dynamic:
- Something painful shows up
- There is no clear way to handle it
- Something external becomes the solution
This pattern is often referred to as experiential avoidance.
Experiential avoidance is the attempt to avoid, suppress, or escape internal experiences like thoughts, emotions, or physical sensations.
Substances can serve many functions in this process:
- Numbing emotional intensity
- Quieting repetitive or intrusive thoughts
- Reducing anxiety or internal pressure
- Creating temporary relief from stress or overwhelm
These responses are not random. They become conditioned responses because they are effective in the short term.
Over time, they create a system where discomfort feels less tolerable and escape becomes more necessary.
Avoidance Drives Relapse
Relapse is often framed as a failure of willpower. A more accurate way to understand it is as the reactivation of a learned pattern.
When discomfort increases, the brain returns to what has worked before.
That process tends to follow a sequence:
- Emotional or psychological discomfort increases
- Tolerance for that discomfort decreases
- Avoidance behaviors increase
- Substance use becomes more likely
Avoidance strengthens the connection between discomfort and escape.
ACT therapy focuses on weakening that connection.
Relapse risk increases when avoidance patterns remain active. Relapse risk decreases when individuals develop the ability to stay present with discomfort without needing to escape it.
How ACT Therapy Changes Cravings
Cravings are one of the most powerful components of addiction.
They often feel urgent, overwhelming, and difficult to resist.
Many people experience cravings as something that needs to be acted on or eliminated immediately. ACT therapy approaches cravings differently.
Cravings are treated as internal experiences that rise, peak, and fall over time, much like the tide.
Instead of reacting to them, individuals learn to:
- Notice the physical sensations associated with the craving
- Observe the thoughts that accompany it
- Allow the experience to exist without acting on it
This process creates separation between urge and behavior.
That separation increases the time between an urge and a learned and automatic behavior. This allows for more flexibility to choose different behaviors.
And increased choice reduces the automatic nature of relapse.
Psychological Flexibility and Its Role in Recovery
Psychological flexibility is one of the core outcomes of ACT therapy.
It refers to the ability to stay in contact with the present moment while making decisions based on values rather than avoidance.
In addition, low psychological flexibility often looks like:
- Reacting immediately to discomfort
- Needing relief before taking action
- Becoming entangled in thoughts or emotions
As flexibility increases, individuals become more capable of:
- Experiencing difficult emotions without escalation
- Noticing thoughts without becoming consumed by them
- Making decisions that align with long-term goals
This shift reduces reliance on substances as a coping strategy.
Values as a Foundation for Recovery
ACT therapy uses values to guide behavior change.
Values are directions, not goals or outcomes.
They reflect how you want to live, how you want to show up, and what matters most over time.
Emotions shift. They can be intense, confusing, and unpredictable. That makes them difficult to rely on when making decisions.
Values are more stable. They don’t change as quickly, which makes them a more reliable guide—especially when things feel hard.
In addiction recovery, values serve a few important functions:
- They provide motivation to tolerate discomfort
- They create consistency when emotions fluctuate
- They offer a steady reference point for decision-making
When a difficult moment shows up—a craving, a stressful situation, or a tough decision—values give you something to orient toward.
“What direction am I choosing right now?”
Values don’t take away discomfort.
They give you a reason to keep going, even when things feel hard.
That makes it easier to stay with difficult experiences without defaulting to avoidance.
Over time, that shift changes how decisions are made—and how recovery is sustained.
Why ACT Therapy Is Effective for Substance Use
ACT therapy is effective for addiction because it targets the underlying mechanism that sustains substance use.
That mechanism is not just behavior.
It is the relationship someone has with their internal experience.
ACT helps individuals:
- Reduce avoidance patterns
- Increase tolerance for emotional pain
- Respond differently to cravings and urges
- Build meaningful engagement in life
This leads to changes that extend beyond symptom reduction.
It creates a different way of interacting with thoughts, emotions, and behavior over time.
Why Structure Matters in ACT-Based Addiction Treatment
Understanding ACT concepts is one step.
Applying them consistently in real-life situations is where change happens.
Substance use patterns emerge in everyday life. Our friends, family, work stresses, school stresses, and overall day-to-day life create the environments that influence substance use.
These moments are often unpredictable and difficult to manage without support.
Structure creates the conditions where these patterns can be observed and addressed as they occur.
This is where levels of care like PHP and IOP become important.
How PHP and IOP Help Reduce Relapse Risk Using ACT Therapy
At Green Hill, ACT is built directly into the curriculum for both PHP and IOP because of how effective it is in addressing substance use and reducing relapse risk.
These programs also create the right environment to learn and apply ACT. Patients are able to practice these skills in real-world situations, with consistent feedback and guidance from clinicians as those moments are happening.
At Green Hill, this process includes:
- Tracking emotional and behavioral patterns
- Identifying avoidance strategies as they emerge
- Building tolerance for discomfort through repeated exposure
- Aligning behavior with values in daily life
Partial Hospitalization Program (PHP)
Since PHP is 5 days a week, the level of structure allows for a more immediate and consistent application of ACT.
Patients are not removed from their environment—they are moving through it each day. That means triggers, cravings, and emotional patterns are showing up in real time.
The difference is that those moments don’t go unaddressed.
Patients come back into programming with specific situations:
- Urges that came up the night before
- Difficult conversations or conflicts
- Moments where avoidance showed up
Those experiences become the work.
Clinicians help patients slow those moments down, understand what showed up internally, and apply ACT skills directly to those situations—whether that’s noticing a craving without reacting, making room for discomfort, or choosing a response that aligns with their values.
The frequency of PHP allows for repetition.
Patterns show up → they are worked through → feedback is given → and then patients go back out and try again.
That loop is what begins to shift behavior.
Intensive Outpatient Program (IOP)
IOP shifts more of that responsibility into the patient’s day-to-day life.
There is less time in programming and more time navigating real-world situations independently.
This is where ACT starts to become something that is carried, not just practiced in session.
Patients are:
- Applying ACT skills during work, school, and relationships
- Noticing where avoidance patterns return
- Making decisions in moments where there is less immediate support
Sessions in IOP focus on reviewing those experiences and refining how ACT is being applied.
What showed up?
Where did avoidance take over?
What did you do differently?
What would you try next time?
The goal is not perfection.
The goal is increasing flexibility—being able to experience discomfort without defaulting back into old patterns.
The progression from PHP to IOP reflects a shift from supported practice to independent application, while continuing to reduce relapse risk through consistent use of ACT principles.
A Different Way to Approach Relapse Prevention
Substance use often begins as a way to manage pain. Recovery involves learning how to respond to that pain in a different way.
ACT therapy supports this shift by helping individuals change their relationship to thoughts, emotions, and cravings.
Instead of reacting automatically or trying to eliminate discomfort, the focus becomes:
- Making room for internal experiences
- Understanding how those experiences function
- Choosing actions that align with what matters
Over time, this changes how cravings are experienced and how decisions are made in difficult moments.
Relapse risk decreases as avoidance patterns weaken and flexibility increases.
Recovery becomes less about controlling every internal experience and more about building the ability to move forward, even when those experiences are present.
That is where long-term change begins.