Nobody picks up a drink for the first time thinking it will become the thing that holds their life together. Nobody plans to need it the way lungs need air, to reach for it in the dark before they are fully awake, to construct an entire architecture of daily life around keeping it close enough and keeping the people who might notice far enough away. That is not a plan. That is what happens when an unregulated nervous system finds the one thing that finally, reliably, makes the noise stop.
For women with CPTSD, that noise has often been running for decades. It started in the body of a child who had no language for what was happening to her and no power to make it stop. It became the background frequency of adult life, the hypervigilance mistaken for anxiety, the numbness mistaken for depression. Substances do not cause that noise. They manage it. And until the nervous system learns another way to manage it, the noise always wins.
The clinical literature on PTSD and substance use disorder is pretty clear about how often these two things co-occur and why. But CPTSD adds a specific layer to that picture.
A 2025 review published in Clinical Psychology in Europe examined the relationship between childhood trauma, dissociative experiences, and substance use disorder in adults, finding that dissociation consistently mediated the relationship between early traumatic exposure and later substance use.
In other words, substances weren't being used to chase a feeling. They were being used to manage dissociation, that destabilizing sense of not being fully present in one's own life that is one of the least visible and most disruptive symptoms of complex trauma. When the nervous system cuts the feed, people find ways to bring themselves back. Substances do that. Reliably and immediately, which is more than most anything else can claim in the middle of a dissociative episode.
Women with CPTSD don't come to substance use in the same way men do, and the research reflects that. A study published in Frontiers in Psychiatry examining 343 treatment-seeking women with co-occurring substance use disorders and PTSD found that the majority reported multiple types of childhood trauma, including sexual, physical, and emotional abuse alongside neglect, and that the severity and variety of childhood trauma directly predicted the severity of both addiction and current clinical symptoms. Polytrauma, multiple types of harm across development, produced a more complex and treatment-resistant picture than any single category of trauma alone.
What this means practically is that a woman arriving at treatment for alcohol use disorder may be carrying a childhood that included emotional neglect, a sexual assault she has never disclosed, and years inside a relationship that slowly convinced her she was the problem. The alcohol is the most visible thing. It is not the most important thing.
Shame does not motivate change. It predicts concealment, avoidance, and the kind of internal narrative that makes treatment feel pointless before it begins. For women with CPTSD, shame is not situational. It is structural. It was built into the self-concept long before the first drink.
That shame compounds in addiction. Every cycle of use and regret adds evidence to a verdict that was already written: I am too broken for this to work. Treatment approaches that address the behavior while leaving that verdict intact are working against themselves. The most effective integrated approaches treat shame and trauma alongside the substance use, not after it.
DBT at Grace & Emerge addresses this directly, building the distress tolerance and emotional regulation skills that make it possible to sit with difficult internal states without requiring chemical relief. EMDR works on the traumatic memories still running as present-tense threat, reducing the neurological load that substances were managing in the first place.
Sequencing addiction treatment and trauma treatment, treating one and then the other, has long been the default clinical approach. The evidence has consistently pointed toward integration as the more effective model.
A 2024 review published in the Journal of Traumatic Stress found that integrated treatments addressing PTSD and substance use disorders simultaneously produced better outcomes than sequential approaches, and that the concern long held by some clinicians, that trauma processing would destabilize substance use recovery, was not supported by the evidence. Treating both together is not more dangerous. It is more effective.
This is what Grace & Emerge's PHP and IOP programming is designed to do. The complex trauma treatment at Grace & Emerge does not ask women to get sober before addressing what drove them to the substance. It treats the whole picture, because the whole picture is what actually needs to change.
If you have been in treatment before and felt like something essential was missing, it may be because the treatment was addressing the answer while leaving the question untouched. We are available to talk through what integrated care could look like for you.