Trauma and Addiction: Why You Can't Treat One Without the Other

“The opposite of addiction is not sobriety,” wrote journalist Johann Hari. “The opposite of addiction is connection.” It is one of the most quoted lines in addiction discourse — and it points toward a truth that the addiction treatment field has been slowly, painfully coming to terms with for decades.

Most addiction is not primarily a disorder of the substance. It is a response to pain — specifically, to pain for which no better solution has been found. And that pain, in the majority of cases, has roots in trauma.

The Research

The ACE (Adverse Childhood Experiences) study — one of the largest investigations of the health consequences of childhood adversity ever conducted — found clear dose-response relationships between childhood trauma and substance use disorders. Having four or more ACEs increased the likelihood of alcohol or drug use disorder by a factor of 7-10 compared to those with no ACEs. The relationship held across all types of adverse experiences: abuse, neglect, household dysfunction, domestic violence, parental mental illness, and parental incarceration.

This is not a coincidence. Substances — particularly alcohol, opioids, cannabis, and benzodiazepines — are highly effective, at least in the short term, at managing the symptoms of trauma. They reduce hyperarousal. They quiet the inner critic. They allow emotional numbing. They interrupt intrusive memory. They make social situations less terrifying. They allow sleep. For someone in pain for whom no other tools are available, these effects are not irrational. They make complete sense.

The Problem with Treating Them Separately

Traditional addiction treatment often focused on the substance: detoxification, abstinence support, relapse prevention, twelve-step programs. These approaches have significant value. But they have historically treated addiction as the primary problem — something to be addressed before or instead of the trauma.

The problem with this sequencing is that it removes the coping mechanism before building an alternative. When someone who has been using alcohol to manage PTSD symptoms stops drinking — without those PTSD symptoms being addressed — the symptoms don't disappear. They intensify. The hypervigilance, the nightmares, the intrusions, the emotional dysregulation all come flooding back without the buffer. Relapse in these circumstances is not a failure of willpower; it is the nervous system doing the only thing it knows to do with that level of distress.

The most effective contemporary approach treats trauma and substance use concurrently — not sequentially. Models like COPE (Concurrent Treatment of PTSD and Substance Use Disorders Using Prolonged Exposure) and Seeking Safety specifically address both simultaneously, with strong evidence for improved outcomes on both fronts compared to single-disorder treatment.

Shame as an Accelerant

Shame is the emotional context in which most addiction exists and is sustained. The shame of being dependent. The shame of what happened while using. The shame of the original trauma. The shame of being seen as weak, of not being able to just stop.

Shame drives people away from treatment and drives people toward the very behaviors they feel ashamed of. Brené Brown's research on shame showed clearly that shame produces more of the behavior it targets, not less. Telling someone their addiction is shameful does not produce sobriety. It produces more need for the thing that quiets the shame.

A trauma-informed approach to addiction does not require more shame. It requires understanding: this behaviour made sense given the pain you were in and the tools you had available. Now let's build different tools.

What Integrated Treatment Looks Like

Good concurrent treatment for trauma and substance use includes:

• Safety and stabilization: building a stable-enough foundation and enough regulation capacity to begin processing trauma without significant relapse risk
• Psychoeducation about both trauma and addiction — understanding the connection reduces shame and increases motivation
• Nervous system regulation skills that provide alternatives to substance use for managing dysregulation
• Trauma processing (EMDR, CPT, PE, or other evidence-based approaches) — reducing the pressure of the underlying traumatic material
• Relapse prevention work that addresses trauma triggers specifically

Recovery from addiction and recovery from trauma are not separate journeys. For most people, they are the same one.

Andrew Garnet MSW, RSW

Registered Social Worker with 18 years of experience in Scarborough, Ontario. Andrew specializes in trauma therapy, EMDR, men's mental health, and support for first responders and veterans. Full bio →