The American Psychological Association defines trauma as “an emotional response to a terrible event like an accident, rape, or natural disaster.”(Source) In everyday terms, trauma is what happens when an experience overwhelms your ability to cope and leaves a lasting impact on how you feel, think, and relate to the world.

Traumatic experiences can be:

• Single-incident events – such as a serious car accident, assault, natural disaster, or sudden loss.
• Chronic or repeated experiences – such as ongoing domestic violence, childhood abuse or neglect, community violence, or long-term bullying.
• Complex trauma – repeated, often interpersonal trauma (especially in childhood) that affects a person’s sense of safety, identity, and relationships.(Source)

Immediately after a traumatic event, people often experience shock, denial, or intense distress. Over time, unresolved trauma can lead to unpredictable emotions, flashbacks, strained relationships, and physical symptoms like headaches, nausea, or chronic pain.(Source) Without support, these symptoms can make daily life feel overwhelming and unmanageable.

Trauma does not affect everyone in the same way. Two people can live through a similar event, and one may develop significant trauma symptoms while the other does not. What matters most is not the specific event, but how your mind and body experience and remember it.

Not everyone who experiences a traumatic event will develop long-term trauma symptoms or post-traumatic stress disorder (PTSD). A person’s response to trauma is shaped by a combination of factors, including:(Source)

• Personal history – previous trauma, mental health conditions, or chronic stress can increase vulnerability.
• Early-life experiences – secure attachment, supportive caregivers, and healthy coping skills learned in childhood can build resilience.
• Current emotional stability and support – having safe relationships, access to care, and a sense of control can reduce the impact of trauma.

Research on adverse childhood experiences (ACEs) shows that the more traumatic or highly stressful events a person experiences in childhood, the higher their risk later in life for substance use disorders, depression, anxiety, and chronic health problems.(Source) At the same time, protective factors—such as stable relationships, community support, and effective therapy—can significantly reduce the long-term effects of trauma.

Trauma symptoms can appear soon after an event or months—even years—later. They may come and go, or intensify during times of stress, anniversaries, or reminders of the trauma.

Common emotional, cognitive, and behavioral symptoms include:(Source)

• Avoidance of intrusive memories, including denial, emotional numbing, or dissociation from reality
• Heightened arousal and exaggerated startle response
• Feelings of extreme anxiety or panic
• Shock, denial, or disbelief
• Confusion or difficulty concentrating
• Anger, irritability, or mood swings
• Guilt, shame, or self-blame
• Withdrawing from others or isolating
• Feeling sad, hopeless, or emotionally flat
• Feeling disconnected, detached, or “numb”

Physical and sleep-related symptoms can include:(Source)

• Insomnia or nightmares
• Fatigue or low energy
• Being startled easily
• Difficulty concentrating or staying focused
• Racing heartbeat or chest tightness
• Edginess, restlessness, or agitation
• Unexplained aches and pains
• Muscle tension or headaches

If these symptoms last for more than a month, significantly interfere with daily life, or lead to self-harm or substance use, professional support is strongly recommended.(Source)

Not everyone with trauma symptoms meets criteria for post-traumatic stress disorder (PTSD), but understanding these terms can help you make sense of what you are experiencing.

• Acute stress reaction – short-term symptoms that occur in the days or weeks after a traumatic event.
• Post-traumatic stress disorder (PTSD) – a mental health condition that can develop after experiencing or witnessing a traumatic event, involving intrusive memories, avoidance, negative changes in mood and thinking, and heightened arousal that last more than one month and cause significant distress or impairment.(Source)
• Complex PTSD (C-PTSD) – often associated with long-term, repeated trauma (especially in childhood), and may include difficulties with emotional regulation, self-worth, and relationships in addition to classic PTSD symptoms.(Source)

Whether or not you have a formal diagnosis, if trauma is affecting your ability to live the life you want, you deserve compassionate, evidence-based care.

The relationship between trauma and substance use is a two-way street. Trauma can increase the risk of developing a substance use disorder, and substance use can increase the risk of experiencing new traumatic events.

Trauma as a risk factor for substance use

Many trauma survivors turn to alcohol or drugs to numb emotional pain, reduce anxiety, or escape intrusive memories. This is often called self-medication. Over time, the brain can begin to rely on substances to cope, which increases the risk of addiction.(Source)

Trauma survivors may also engage in other compulsive or high-risk behaviors in an attempt to feel better or regain a sense of control, such as binge eating, compulsive shopping, gambling, or risky sexual behavior.(Source) Adolescents and young adults are especially vulnerable; they may use substances to cope with bullying, violence, family conflict, or other traumatic experiences.

Once a behavior or substance provides even brief relief, it can quickly become a powerful habit. The brain learns to associate the substance with relief from distress, making it easier to slip into a pattern of misuse or addiction.

Substance use as a risk factor for trauma

Substance use can also increase the likelihood of experiencing trauma. Alcohol and drugs can impair judgment, lower inhibitions, and place people in unsafe situations. National survey data show that adolescents and young adults who use alcohol or drugs are more likely to engage in risky behaviors such as driving under the influence, riding with impaired drivers, or spending time in unsafe environments.(Source)

People with substance use disorders are also more likely than their peers to experience physical assaults, accidents, and other traumatic events, or to witness harm to others.(Source) This can create a painful cycle in which trauma leads to substance use, which then leads to more trauma.

Because of this complex, two-way relationship, effective treatment must address both trauma and substance use together.

For many people, trauma and addiction are co-occurring disorders—conditions that exist at the same time and influence each other. Treating only the substance use, without addressing trauma, often leaves the underlying pain untouched. This can increase the risk of relapse when stress, memories, or triggers resurface.(Source)

Integrated, trauma-informed care focuses on:

• Safety first – creating an environment where you feel physically and emotionally safe.
• Understanding the “why” behind substance use – exploring how trauma, stress, and emotions contribute to cravings and use.
• Building healthier coping skills – replacing substances with tools that help you manage distress, anxiety, and triggers.
• Addressing shame and self-blame – helping you understand trauma responses as survival strategies, not personal failures.

Research shows that people with PTSD and substance use disorders often have better outcomes when both conditions are treated at the same time, rather than sequentially.(Source) By treating the underlying trauma, you are not just working toward sobriety—you are working toward a more stable, meaningful, and connected life.

Modern trauma and addiction treatment is collaborative, compassionate, and grounded in research. At Cardinal Recovery, our approach is trauma-informed, meaning we recognize the widespread impact of trauma and actively work to avoid re-traumatization.

Common evidence-based therapies and supports for co-occurring trauma and substance use include:

• Trauma-focused cognitive behavioral therapy (TF-CBT) – helps you identify and change unhelpful thoughts and behaviors related to trauma and substance use, and gradually process traumatic memories in a safe, structured way.(Source)
• Eye Movement Desensitization and Reprocessing (EMDR) – uses guided eye movements or other forms of bilateral stimulation to help the brain reprocess traumatic memories so they feel less distressing over time.(Source)
• Cognitive Processing Therapy (CPT) – focuses on challenging and modifying unhelpful beliefs related to trauma, such as guilt, shame, or self-blame.(Source)
• Seeking Safety and other integrated models – present-focused therapies designed specifically for people with both trauma and substance use disorders, emphasizing coping skills, safety, and stabilization.(Source)
• Medication-assisted treatment (MAT) – when appropriate, medications can help manage cravings, withdrawal symptoms, depression, anxiety, or sleep problems, making it easier to engage in therapy.(Source)
• Group and family therapy – offers connection, understanding, and improved communication, helping to rebuild trust and support systems.
• Mind-body approaches – such as mindfulness, yoga, breathwork, and somatic therapies, which can help regulate the nervous system and reduce physical symptoms of trauma.(Source)

Your treatment plan should be individualized, respectful of your pace, and aligned with your goals and values.

It may be time to seek professional support if you notice:

• Using alcohol or drugs to cope with memories, emotions, or stress
• Increasing tolerance or needing more substances to feel the same effect
• Difficulty cutting back or stopping on your own
• Nightmares, flashbacks, or intrusive memories that feel out of control
• Avoiding people, places, or situations that remind you of past events
• Feeling constantly on edge, irritable, or emotionally numb
• Strained relationships, problems at work or school, or legal or financial issues related to substance use

If you are having thoughts of self-harm or suicide, or feel you may be in immediate danger, contact emergency services or a crisis hotline right away.(Source) You do not have to face this alone—help is available 24/7 in most areas.

Has trauma and substance use impacted your life? We are here for you, and we are here to help.

At Cardinal Recovery, we understand that behind many substance use disorders is a history of pain, loss, or fear. Our trauma-informed addiction treatment approach is designed to:

• Honor your story – we listen without judgment and move at a pace that feels safe for you.
• Integrate care – addressing trauma symptoms, mental health, and substance use together, not in isolation.
• Build skills – helping you develop practical tools for managing cravings, triggers, and emotional distress.
• Support long-term recovery – focusing on relapse prevention, healthy relationships, and rebuilding a meaningful life.

You are not defined by what happened to you or by your substance use. With the right support, healing is possible. If you or a loved one is struggling with trauma and addiction, reach out to Cardinal Recovery to learn more about our programs and how we can support your recovery journey.