The Connection Between Trauma and Substance Use

For many people, substance use didn't begin as recklessness. It began as relief.

When someone struggles with both trauma and substance use, it can feel like fighting two separate battles at once. In reality, they are usually deeply connected — and understanding that connection is one of the most important steps toward lasting recovery. At The Moore Resilient Group, our trauma therapy and substance use disorder therapy are designed to work together, because for most people the two cannot be fully healed apart. This guide explains how trauma and substance use are linked, why that link matters, and what effective, integrated care looks like.

How Common Is the Overlap?

The relationship between trauma and substance use isn't a fringe theory — it's one of the most consistent findings in the field. Research shows that an estimated 50 to 75 percent of people seeking treatment for substance use disorder have significant trauma histories. Among people with post-traumatic stress disorder, rates of substance use disorder are far higher than in the general population. The U.S. Department of Veterans Affairs' National Center for PTSD describes this overlap in detail and why the two so often appear together.

This overlap is so common that treating one without the other often falls short. For decades, the two were handled in separate silos — a person might go to one place for addiction and another for trauma, with neither provider seeing the whole picture. We now understand that approach leaves the most important connection unaddressed. When trauma and substance use travel together, the most effective care holds both at the same time.

The Self-Medication Connection

Why do trauma and substance use overlap so often? The clearest explanation is what clinicians call the self-medication hypothesis. Trauma leaves the nervous system dysregulated — stuck in states of hyperarousal, numbness, or both. Substances offer a fast, reliable way to change those states, even if only temporarily. For someone in that kind of pain, a substance can feel less like a choice and more like the only tool that works.

The pattern often lines up with what a person is trying to manage. Alcohol and other depressants can quiet the hypervigilance, racing thoughts, and physical tension that trauma leaves behind. Opioids can numb emotional pain that has never had a chance to process. Stimulants can provide energy, focus, and a sense of control when depression and dissociation make ordinary functioning feel impossible. Seen this way, substance use isn't a separate problem layered on top of trauma — it's frequently an attempt to cope with it.

This understanding changes everything about how we respond. It moves the question from "Why can't you just stop?" to "What is this substance helping you survive?" That second question is where real treatment begins. It replaces judgment with curiosity, and curiosity is what makes it safe for someone to look honestly at what's driving their use.

Recognizing the Connection in Everyday Life

For many people, the link between trauma and substance use isn't obvious from the inside. It can show up in patterns that seem unrelated at first: reaching for a drink specifically at night when intrusive memories surface, needing something to take the edge off before situations that feel unsafe, or noticing that cravings spike around certain anniversaries, places, or reminders. The use may feel automatic — tied less to a desire to get high than to a need to feel normal, calm, or in control.

These patterns are worth paying attention to, whether you notice them in yourself or in someone you love. A person managing trauma through substances is often not trying to escape life so much as to make it bearable. Recognizing that can soften the shame that so often keeps people stuck and silent. It also points toward the kind of help that is likely to work: not willpower alone, and not addiction treatment that ignores the trauma underneath, but care that treats the two as the connected experience they actually are. Naming the pattern is rarely comfortable, but it is frequently the moment real change becomes possible.

Why Treating Both Together Matters

If substances are being used, in part, to manage the effects of trauma, then addressing the substance use alone leaves the underlying driver intact. People can achieve sobriety, sometimes for meaningful stretches, only to find that the unprocessed trauma reasserts itself — through flashbacks, anxiety, depression, or sleeplessness — and with it, the powerful pull to use again. This is one reason that untreated trauma is associated with higher relapse rates. The pain the substance was managing is still there.

Integrated treatment addresses both at once. At The Moore Resilient Group, our therapists are trained in both trauma-focused approaches — including EMDR — and substance use disorder treatment, so we hold the full picture from the very first session. That said, integration also means careful sequencing. Trauma work has to be paced thoughtfully alongside recovery, because diving into traumatic material before a person has enough stability and coping resources can be destabilizing. Skilled integrated care builds safety and regulation first, then approaches the trauma when the person is ready. Timing and pacing always serve the client's wellbeing — never a fixed protocol.

The goal is not simply to stop the substance use, but to heal what made the substance feel necessary in the first place. When the underlying trauma is addressed, recovery rests on much firmer ground.

There Is a Path Forward

If you recognize yourself in this — using something to manage pain that runs deeper than the substance itself — please know that this is one of the most human responses imaginable, and that there is a way through it. You are not weak, and you are not beyond help. You found a way to survive something difficult, and now there is a way to heal it.

The Moore Resilient Group offers a free, no-pressure initial consultation where you can share what's going on and see how the fit feels. Reach out here to get started. We serve clients in Wyomissing and across Berks County, Pennsylvania in person, and clients throughout Pennsylvania via secure telehealth. Wherever you are in your journey, we're glad you're here.

About the Author

Kathy Moore, MA, LPC, is a Licensed Professional Counselor and the founder of The Moore Resilient Group in Wyomissing, Pennsylvania. A seasoned and compassionate therapist, she specializes in trauma, anxiety, depression, and addiction recovery — drawing on EMDR, Cognitive Processing Therapy, Internal Family Systems, and Cognitive Behavioral Therapy. Her practice starts with each client's goals, working within their framework to help them recapture resilience and find life balance. Learn more at Kathy Moore's profile.