ADHD & Anxiety: How They Co-Occur and Integrated Treatment Approaches
· Mental Health · By The CCD Clinical Team · Clinically reviewed by Lisa R. Savage, LCSW
Learn how ADHD and anxiety co-occur in children, why they're often misdiagnosed, and evidence-based treatment approaches for managing both conditions together.
ADHD & Anxiety: How They Co-Occur and Integrated Treatment Approaches
Introduction
When a child struggles with focus, worry, and emotional regulation, parents and educators often wonder: Is this ADHD? Is it anxiety? Could it be both? The answer, increasingly supported by research, is that many children experience both conditions simultaneously. In fact, up to 30–50% of children diagnosed with ADHD also meet criteria for an anxiety disorder [1]. Understanding how these two conditions interact—and how they're treated together—is essential for parents, educators, and mental health professionals working with children in Delaware schools and communities.
The relationship between ADHD and anxiety is complex. Sometimes anxiety develops as a consequence of untreated ADHD. Other times, anxiety symptoms can masquerade as ADHD. And in many cases, both conditions are present from the start, each amplifying the other's impact on a child's academic performance, social relationships, and emotional well-being. This guide explores the science behind ADHD-anxiety comorbidity and offers practical, evidence-based strategies for integrated treatment.
How ADHD and Anxiety Co-Occur: Three Key Pathways
Pathway 1: ADHD Triggers Secondary Anxiety
The most common scenario is that untreated ADHD creates the conditions for anxiety to develop. A child with ADHD struggles with executive function—the ability to organize, plan, and sustain attention. This child might forget homework assignments, struggle to sit still in class, or speak impulsively without considering consequences. The result? Frequent corrections from teachers and parents, negative comparisons to siblings and peers, and a growing sense of dread about what might go wrong next.
Over time, this child internalizes a worry pattern: "Am I going to remember my homework? Am I going to get in trouble today? Why can't I do what everyone else can do?" This is not generalized anxiety disorder appearing out of nowhere—it's a rational response to the genuine challenges posed by untreated ADHD. As one pediatric nurse practitioner explains, when children experience the consequences of ADHD symptoms repeatedly, they develop understandable anxiety about their ability to succeed [2].
Pathway 2: Anxiety Mimics or Masks ADHD Symptoms
Conversely, a child with significant anxiety can display symptoms that look remarkably like ADHD. Imagine a child whose mind is constantly racing with worries—about social situations, academic performance, family relationships, or health concerns. This child is so preoccupied with anxious thoughts that they cannot focus on classroom instruction. They may appear restless or fidgety because their nervous system is in a state of high alert. They might make careless mistakes on tests or forget assignments, not because of executive dysfunction, but because their working memory is consumed by worry.
As one clinician describes it, children with anxiety are "like a balloon so filled with air it's about to pop" [2]. Their nervous system is so activated that sleep suffers, concentration falters, and they may lash out impulsively when triggered. Without careful assessment, this presentation can be mistaken for ADHD, leading to treatment that doesn't address the root cause.
Pathway 3: Mutual Exacerbation
When both ADHD and anxiety are present and untreated, they create a vicious cycle. ADHD symptoms lead to anxiety, which worsens focus and impulse control, which increases anxiety further. A child caught in this loop experiences compounding difficulties: the inattention of ADHD plus the hypervigilance of anxiety, the impulsivity of ADHD plus the avoidance of anxiety. Without intervention, both conditions intensify.
Research suggests that early ADHD symptoms may actually contribute to the development of anxiety symptoms over time [3]. This underscores the importance of early identification and treatment—intervening with ADHD early may prevent anxiety from taking root.
Recognizing the Overlap: Symptoms That Look Similar (But Aren't Quite the Same)
| Symptom | ADHD | Anxiety | Notes |
|---|---|---|---|
| Difficulty concentrating | Due to executive dysfunction; mind wanders to unrelated topics | Due to worry; mind is preoccupied with anxious thoughts | In ADHD, the child is easily distracted; in anxiety, the child is fixated on worry |
| Restlessness/fidgeting | Neurological need for movement; difficulty sitting still | Physical manifestation of nervous system activation | ADHD restlessness is constant; anxiety restlessness is triggered by worry |
| Impulsive behavior | Difficulty inhibiting responses; act before thinking | Reactive behavior driven by fear or panic | ADHD impulsivity is automatic; anxiety impulsivity is fear-driven |
| Sleep problems | Difficulty "turning off" the brain; racing thoughts unrelated to worry | Difficulty falling asleep due to worry; early morning waking with dread | ADHD sleep issues are about regulation; anxiety sleep issues are about worry |
| Irritability | Frustration from difficulty with tasks; low frustration tolerance | Irritability from anxiety buildup; snapping when triggered | ADHD irritability is about task frustration; anxiety irritability is about threat perception |
The key insight: both conditions can produce similar-looking symptoms, but for different reasons. This is why comprehensive assessment—not just a rating scale—is so important.
The Impact on School and Daily Life
For children in Delaware schools, ADHD-anxiety comorbidity creates particular challenges:
In the classroom: A child might struggle to complete assignments due to inattention (ADHD) while simultaneously worrying about whether they're doing it "right" (anxiety). They may avoid raising their hand to ask for help because of social anxiety, even though they need clarification. They might rush through work impulsively to escape the anxiety of being watched, leading to careless errors.
Socially: ADHD can lead to social difficulties—interrupting peers, missing social cues, acting without thinking. Anxiety can compound this by making the child hyperaware of these missteps, leading to social withdrawal and further isolation. Some children become so anxious about social rejection that they avoid peer interaction altogether, missing opportunities to develop friendships.
At home: Parents report that children with ADHD-anxiety comorbidity are often "stuck"—they want to do their homework but can't focus, they want to go to sleep but their mind won't quiet, they want to behave but their impulses override their intentions. The anxiety about failure can actually prevent them from trying, creating a paradox where worry becomes a form of avoidance.
Screening and Diagnosis: Getting It Right
Accurate diagnosis is the foundation of effective treatment. However, distinguishing ADHD from anxiety—or recognizing when both are present—requires more than a brief screening questionnaire.
Recommended Assessment Approach
Comprehensive evaluation should include:
- Diagnostic interviews with parents and child, exploring developmental history, symptom onset, and functional impact
- Rating scales from multiple informants (parents, teachers) to capture how the child functions across settings
- Standardized screening tools specific to each condition:
- Vanderbilt Assessment Scales for ADHD symptoms
- SCARED (Screen for Child Anxiety Related Disorders) for anxiety, which identifies specific anxiety types (generalized anxiety, separation anxiety, social anxiety, panic disorder, school avoidance)
- Direct observation of the child's behavior and attention
- Psychological testing to assess cognitive functioning and rule out learning disabilities
Key Questions for Diagnosis
Rather than asking a child directly, "Are you anxious?" (which rarely yields accurate answers), clinicians should ask, "What worries you?" This often opens a flood of concerns that reveal the anxiety pattern. Similarly, asking parents and teachers about specific situations—"When does your child struggle most? What does that look like?"—provides concrete information about whether symptoms are driven by inattention, worry, or both.
One effective approach is to help the child and family understand their own experience: "Some kids tell me that when they sit in class, they're so worried about other things that they miss what the teacher says. Other kids tell me they're trying really hard to pay attention, but then they make a silly mistake because they just can't focus. What's your experience?" [2]
Treatment Approaches: Integrated and Individualized
Once both ADHD and anxiety are identified, the question becomes: What do we treat first? The answer depends on the individual child, but research provides clear guidance.
General Treatment Principles
Start with ADHD medication if both conditions are present. Stimulant medications (methylphenidate, amphetamine) work quickly and effectively for ADHD symptoms. Importantly, once ADHD is treated, anxiety often improves significantly—sometimes without additional intervention [1]. This is because much of the child's anxiety was rooted in the consequences of untreated ADHD. Additionally, research shows that early stimulant treatment has protective effects, reducing the likelihood that children will develop depression, anxiety, or oppositional defiant disorder later [4].
However, there are exceptions. If a child's anxiety is so severe that it's preventing them from engaging in treatment, or if there are specific contraindications to stimulants, treating anxiety first may be appropriate. In these cases, cognitive behavioral therapy (CBT) and/or SSRIs (serotonergic antidepressants) are first-line treatments for anxiety.
Medication Options
| Condition | First-Line | Alternative | Notes |
|---|---|---|---|
| ADHD (alone) | Stimulants (methylphenidate, amphetamine) | Nonstimulants (atomoxetine) | Stimulants are most effective; nonstimulants for specific contraindications |
| ADHD + Anxiety | Stimulants | Nonstimulants (for anxiety-prone children) | Stimulants are safe and effective; address concerns about worsening anxiety |
| Anxiety (alone) | CBT + SSRIs | CBT alone or SSRIs alone | Combined approach often most effective |
| Comorbid ADHD + Anxiety | Stimulant + CBT; consider SSRI if needed | Nonstimulant + CBT + SSRI | Multimodal approach addresses both conditions |
Addressing Stimulant Concerns
Many parents worry that stimulant medication will worsen their child's anxiety. This concern is understandable but not supported by evidence. Stimulants are safe and effective for children with comorbid ADHD and anxiety. However, clinicians should prepare children for potential physical sensations—for example, increased heart rate awareness or a feeling of "alertness"—so that these normal effects don't trigger anxiety [2]. Open communication and a collaborative approach ("We'll work together to find what works best for you") help build trust and adherence.
Psychotherapy: Cognitive Behavioral Therapy
CBT is the gold standard for anxiety treatment and is also highly effective for children with ADHD. CBT teaches children to:
- Identify anxious thoughts and challenge them with evidence
- Develop coping strategies for managing worry (breathing techniques, grounding exercises)
- Gradually face feared situations (exposure therapy)
- Build problem-solving skills
- Develop emotional regulation strategies
For children with comorbid ADHD-anxiety, CBT may need to be adapted. A child with ADHD might struggle with the cognitive work of identifying thoughts, so a therapist might use more behavioral techniques (exposure, behavioral experiments) alongside cognitive work. The therapist should also help the child develop organizational and planning skills to reduce the real-world stressors that fuel anxiety.
Behavioral Interventions and School Accommodations
Beyond medication and therapy, children with ADHD-anxiety benefit from:
- Parent coaching to support behavior management, emotional regulation, and homework completion
- School accommodations such as extended testing time, preferential seating, or a quiet space for breaks
- Clear, consistent routines at home and school to reduce uncertainty and anxiety
- Positive reinforcement for effort and progress, not just outcomes
- Social skills coaching to address peer difficulties
Important note: Anxiety can prevent children from using available accommodations. For example, a teenager eligible for extended testing time might refuse it due to social anxiety about appearing "different" to peers. Clinicians should explicitly address these barriers, helping the child problem-solve ways to use accommodations comfortably.
Why Early Treatment Matters
Research on long-term outcomes shows that early, comprehensive treatment of ADHD—especially when comorbid conditions are addressed—has profound effects:
- Academic achievement: Children treated early show better academic performance in elementary school and higher educational attainment
- Health-related quality of life: Improved functioning across home, school, and social domains
- Brain development: Better brain functioning and cognitive development
- Prevention of comorbidities: Early stimulant treatment reduces the risk of developing depression, anxiety, and ODD
- Life outcomes: Compared to untreated children, those who receive early treatment are less likely to repeat grades, have better employment outcomes, and show lower involvement with the legal system [4]
In other words, treating ADHD-anxiety comorbidity early isn't just about symptom relief—it's about setting a child on a trajectory toward success.
Implications for Educators
Teachers and school staff play a crucial role in identifying and supporting children with ADHD-anxiety comorbidity. Educators should:
- Recognize the signs: A child who is both hyperactive/inattentive AND anxious/withdrawn may have comorbid ADHD-anxiety
- Communicate observations: Share specific examples of how the child functions in the classroom with parents and clinicians
- Support accommodations: Help implement school-based interventions consistently
- Reduce performance pressure: Anxiety can worsen when children feel constantly evaluated; create a classroom culture where effort is valued
- Teach coping skills: Simple strategies like deep breathing, movement breaks, or a "worry time" can help children manage anxiety in the classroom
FAQ: Common Questions About ADHD-Anxiety Comorbidity
Q: Can stimulants make anxiety worse? A: Research shows that stimulants are safe and effective for children with comorbid ADHD and anxiety. Some children may notice increased heart rate awareness or alertness, which is normal. Open communication with your clinician about how the medication feels is important.
Q: Should we treat anxiety first if it's severe? A: In most cases, ADHD is treated first because stimulants work quickly and often reduce anxiety as a secondary benefit. However, if anxiety is so severe that it's preventing treatment engagement, anxiety treatment may come first. Your clinician can help determine the best approach for your child.
Q: Can anxiety be "cured" by treating ADHD? A: Sometimes. If anxiety developed as a consequence of untreated ADHD, treating ADHD may resolve the anxiety. However, if anxiety is a separate condition, additional treatment (therapy, medication) may be needed.
Q: How long does treatment take? A: ADHD medication typically shows effects within days to weeks. Therapy for anxiety usually requires 12–20 sessions to see significant improvement. Many children benefit from ongoing support over months to years.
Q: What if my child doesn't respond to treatment? A: If a child isn't improving, clinicians should consider whether a comorbidity was missed, whether the child is adhering to treatment, or whether a different medication or dosage might be more effective. Don't hesitate to ask for a comprehensive re-evaluation.
Moving Forward: A Path to Support
If you suspect your child has ADHD, anxiety, or both, the first step is a comprehensive evaluation by a qualified mental health professional. In Delaware, school-based mental health services through the Center for Child Development can provide screening, assessment, and treatment planning. For families seeking additional support, therapy and medication management are available through both school-based and community-based providers.
The good news is that ADHD-anxiety comorbidity is highly treatable. With accurate diagnosis, appropriate medication, evidence-based therapy, and school support, children can thrive academically, socially, and emotionally. Early intervention sets the stage for long-term success.
References
[1] Melegari, M. G., et al. (2018). "Comorbidity of Attention Deficit Hyperactivity Disorder and Anxiety Disorders in Children and Adolescents." Journal of Affective Disorders, 238, 544–551. https://www.sciencedirect.com/science/article/abs/pii/S0165178118303676
[2] The REACH Institute. (2024). "Untangling ADHD and Anxiety as Comorbidities." https://thereachinstitute.org/untangling-adhd-and-anxiety-as-comorbidities/
[3] Gair, S. L., et al. (2021). "Early Development of Comorbidity Between Symptoms of Attention-Deficit/Hyperactivity Disorder and Anxiety." PLOS ONE, 16(3), e0248033. https://pmc.ncbi.nlm.nih.gov/articles/PMC7878348/
[4] Robb, A. S. (2025). "Beyond the Core Symptoms of ADHD in Children: Comorbid Screening and Treatment Guidance." ADDitude Magazine. https://www.additudemag.com/adhd-in-children-symptoms-comorbidities/
About This Post
Related at CCD: ADHD evaluation & treatment · Child psychiatry & medication management · Anxiety treatment · Insurance & Medicaid
This article was written by the Center for Child Development to help parents, educators, and caregivers understand ADHD-anxiety comorbidity and evidence-based treatment approaches. For questions or to schedule a consultation, contact us at 302-292-1334 or visit our website at www.ccddelaware.com.
Are you an educator interested in supporting your students' mental health? The Center for Child Development offers professional development and consultation services for schools. Learn more about our Educator Wellness Program.