ADHD and PTSD: How They’re Connected and Why It Matters
Attention-deficit/hyperactivity disorder (ADHD) and post-traumatic stress disorder (PTSD) are distinct mental health conditions that both can significantly impact how a person functions day to day. What many don’t realize is how often these two conditions overlap and how similar they can appear on the surface. Understanding the connection between ADHD and PTSD matters because accurate diagnosis leads to more effective treatment.
The Surprising Connection
Research reveals a striking relationship between ADHD and PTSD. People with ADHD face substantially higher rates of developing PTSD after experiencing trauma compared to those without ADHD. This elevated risk isn’t coincidental: it stems from fundamental differences in how the ADHD brain processes stress and threatening experiences.
Those with ADHD often have nervous systems that are more sensitive to the fight-or-flight response, making them more vulnerable to developing PTSD following traumatic events. This sensitivity, combined with the executive functioning challenges inherent to ADHD, creates a perfect storm for trauma responses to take deeper root.
When Symptoms Look Alike
Both conditions keep the nervous system in a state of heightened alert. This similarity in presentation means one condition can mask the other. Some of the symptoms that overlap between PTSD and ADHD include:
Restlessness and difficulty staying still
Trouble concentrating and maintaining focus
Heightened startle response
Sleep disturbances
Memory difficulties
Irritability and mood changes
Depression
The Executive Functioning Connection
Both ADHD and PTSD significantly impact executive functioning, which are the mental skills that help us plan, focus attention, remember instructions, and manage multiple tasks. When a person has both conditions, these problems feed into each other:
Working memory becomes even more compromised
Paying attention for long periods is more difficult
Switching between tasks becomes harder
Planning and organization suffer
The Critical Difference
Despite their overlapping symptoms, ADHD and PTSD have fundamentally different origins. ADHD is a neurodevelopmental disorder—something people are born with that affects how their brain develops and functions. It influences cognitive processing and how someone responds to the world around them.
PTSD, on the other hand, develops after trauma exposure. While it certainly affects brain functioning, PTSD primarily involves the stress response system and emotional regulation. It’s a condition that emerges from experience rather than brain development.
Why Children’s Diagnoses Get Missed
Children with either or both ADHD and PTSD have a particularly hard time getting recognized and treated. Since their symptoms overlap, clinicians may identify only one condition and miss the other entirely. Sometimes, a child’s struggles get dismissed altogether as “behavioral problems.”
This misdiagnosis means inadequate therapeutic treatment and possibly appropriate medications. A child with both conditions needs comprehensive treatment addressing both the neurodevelopmental aspects of ADHD and the trauma-related parts of PTSD.
Getting the Right Help
The encouraging news is that both ADHD and PTSD are treatable, even when they occur together. However, an accurate diagnosis is the most important first step in determining the most effective treatment approach.
Treatment might include therapy specifically designed for trauma processing, medication to manage ADHD symptoms, or both. The key is working with mental health professionals who understand the complex relationship between these conditions and can develop comprehensive treatment plans.
If you or your child struggles with attention difficulties, emotional regulation, or trauma responses, getting an official evaluation matters. Understanding whether you’re dealing with ADHD, PTSD, or both opens the door to targeted support that addresses your specific needs.
At Key Counseling Atlanta, our therapists understand the nuanced relationship between ADHD and PTSD. We provide evidence-based therapies for both conditions. Contact us today to learn how we can support you or your loved one through therapy for ADHD, trauma therapy for PTSD, or a combined approach.

