How to Stop Worrying When You Have ADHD: What Actually Works

ADHD and Worry: Why “Just Stop Thinking About It” Backfires

Harold Robert Meyer The ADD Resource Center · Reviewed July 28, 2026 · Published July 30, 2026

Worry is not a symptom of ADHD, but ADHD manufactures the conditions it needs. What the twin studies and the suppression research actually show about whether that is permanent, and a technique you can start using tonight.

You have already tried to stop. That is usually where this question comes from – not from curiosity, but from the fourth or fifth time you talked yourself down at 2 a.m. and found it waiting for you at 6. Somebody has probably told you to put it out of your mind. You tried that too, it made things worse, and you assumed the failure was yours. It was not. It was the instruction.

Key Takeaway

Worry is not a symptom of ADHD, but ADHD manufactures the conditions worry needs. Suppressing it is the one response that reliably backfires. Postponing it, in writing and out loud, at a set hour, is the response with evidence behind it.

Why This Matters

If you believe your worry is a fixed feature of your neurology, you will not seek treatment, and every failed attempt to shove it aside reads as confirmation. Those failures are evidence about suppression, not about you.

Key Findings

Worry appears nowhere in the diagnostic criteria for ADHD. Anxiety disorders are common company, not constitutive of the condition.
Suppressing a thought produces a rebound: it returns more, not less, across 31 studies and regardless of how loaded your mind already is.
Worry and rumination keep the body’s stress response running after the stressor has ended. Perseveration carries a physiological cost.
Worry postponement – deferring worries to a fixed daily window rather than banishing them – reduces daily worry in randomized trials, with small effects.

Worry is not in the criteria

The diagnostic criteria for ADHD describe inattention, hyperactivity, and impulsivity. Worry is not among them. What is documented is the company ADHD keeps: across 32 studies of adults, anxiety disorders ranked among the four most frequent co-occurring conditions, at general-population prevalence estimates from roughly 4% to 47% depending on sample and instrument (Choi et al., 2022).

Common, then. Not constitutive – a distinction that matters, because what merely travels alongside a condition can be named and treated separately.

Some overlap is inherited. A meta-analysis of 31 twin studies put the genetic correlation between ADHD symptoms and internalizing symptoms at .50 (Andersson et al., 2020). That is easy to hear as a life sentence. It means the genetic influences overlap substantially, not that half your worry is fixed, and it says nothing about you as an individual. Loaded is not locked.

Why “get it out of your mind” makes it worse

In 1987, Daniel Wegner and colleagues asked people not to think about a white bear for five minutes. They could not. Told afterward to think about it freely, they produced more bear thoughts than people never asked to suppress (Wegner et al., 1987). Push a thought down and it comes back with interest.

The finding has held up. A 2020 meta-analysis of 31 studies found the rebound appeared regardless of cognitive load. What depended on load was the immediate effect: people thought about the forbidden thing more while suppressing it only when their resources were already taxed (Wang et al., 2020).

Nobody has run that experiment in adults with ADHD. The next step is my inference, not the researchers’: if immediate backfire tracks taxed cognitive resources, and ADHD taxes exactly those, suppression should be a poor tool here. An expectation, not a finding.

What is demonstrated is that suppression is a poor tool for everyone. Told to put it out of your mind, you are being handed the one strategy with a documented backfire.

And perseveration is the cost

There is a name for what you mean when the worry will not let go. Perseverative cognition covers worry, which points forward, and rumination, which points back. Its documented consequence is keeping the stress response running after the stressor has ended, or before it arrives (Brosschot et al., 2006).

That reframes the target. The problem is not that the thought arrives. Thoughts arrive. It is duration – how long the loop runs – and duration responds to intervention.

It fits what has been observed in ADHD directly. In 159 medication-free adults, ADHD symptom severity showed an indirect but not a direct association with anxiety and depression, running through excessive mind wandering, rumination, and reduced trait mindfulness (Kandeğer et al., 2024). It is cross-sectional, so the arrows are a model. But ADHD did not connect to worry by itself. It connected through habits.

Your worry is also partly correct

Conventional guidance tells the worried person to examine the evidence for the catastrophic thought. For many adults with ADHD, that evidence is on the worry’s side. If you have missed the deadline, forgotten the appointment, lost the document, then “I am going to blow this” is not a distortion. It is a forecast built from your history.

So the answer runs on two tracks. One is the loop. Two is the base rate: the calendars, alarms, and checklists that make the feared outcome less likely. Reassurance without track two is hollow, and you know it.

What you can do tonight

Postpone instead of banishing. Pick a fixed 20 to 30 minute window, same time and place daily, never in bed. When a worry arrives outside it, do not argue and do not push it away. Note it and tell it you will get to it at 6:30. Then worry on purpose.

Write it down, then say it out loud. The writing is the ADHD adaptation and not optional: “I’ll deal with that later” is a promise held in working memory, which is precisely what is unreliable here. An unwritten deferral is a suppression attempt in disguise. Then say the worry aloud, in one sentence. Writing parks it; saying it names it. The one-sentence limit does the work: a worry that will not compress is usually several worries in one coat, and the vagueness is what keeps it running. The evidence is adjacent rather than direct, drawn from fear rather than worry: putting feelings into words during exposure beat distraction, reappraisal, and exposure alone a week later (Kircanski et al., 2012).

Sort it as you write it. One word beside each worry: act or park. Act means there is a next physical step, and it goes on the calendar with a time. Park means there isn’t one, and it waits in the window without a job. What you must not write is dismiss. “I shouldn’t be worrying about this” is not a category. It is an argument, and you know how those go.

In the window, use distance rather than dismissal. Ask how much this will matter in two hours, a week, a month. That escalation is close to an experimental manipulation: across seven studies, a distant-future view of a stressor reduced distress more than a near-future view or none (Bruehlman-Senecal & Ayduk, 2015). Those authors warn, rightly, that dwelling on how things pass can persuade you problems solve themselves. Lower the temperature; do not skip the step.

Expect modest results. The technique, stimulus control, dates to Borkovec et al. (1983). In one trial, 53 high-worry adults given a daily 30-minute period beat controls on worry, anxiety, negative affect, and insomnia (McGowan & Behar, 2013). A meta-analysis of seven trials, 999 participants, found reductions in worry duration and frequency with small effect sizes (Dippel et al., 2024). Follow-up beyond a month is thin, and one trial in generalized anxiety disorder found no benefit. A working tool, not the answer.

Give it two weeks. The trials ran between one week and a month. Three bad nights is not a verdict.

“In thirty years I have never met a person who worried their way to a solution. I have met a great many who stopped fighting the thought, wrote it down, and found it had less to say by evening.” – Harold Robert Meyer

So, can you stop?

Not in the sense of silence, and anyone promising that is selling something. Aim at what shows up in research and in practice: shorter loops, faster exits, fewer nights lost to a problem you cannot solve at 2 a.m.

Across 28 randomized trials, cognitive behavioral therapy for adults with ADHD reduced core symptoms and anxiety and depression, the emotional gain predicted by the drop in core symptoms (Liu et al., 2023). The worry fell when the disorganization did.

One caution worth acting on. If your worry is near-daily, physical, and largely independent of what is on your plate, you may have an anxiety disorder in its own right, not ADHD overflow. Treating the ADHD alone will not clear it. Say so to your clinician in those words.

Bibliography

Andersson, A., Tuvblad, C., Chen, Q., Du Rietz, E., Cortese, S., Kuja-Halkola, R., & Larsson, H. (2020). Research review: The strength of the genetic overlap between ADHD and other psychiatric symptoms – a systematic review and meta-analysis. Journal of Child Psychology and Psychiatry, 61(11), 1173–1183. https://doi.org/10.1111/jcpp.13233

Borkovec, T. D., Wilkinson, L., Folensbee, R., & Lerman, C. (1983). Stimulus control applications to the treatment of worry. Behaviour Research and Therapy, 21(3), 247–251. https://doi.org/10.1016/0005-7967(83)90206-1

Brosschot, J. F., Gerin, W., & Thayer, J. F. (2006). The perseverative cognition hypothesis: A review of worry, prolonged stress-related physiological activation, and health. Journal of Psychosomatic Research, 60(2), 113–124. https://doi.org/10.1016/j.jpsychores.2005.06.074

Bruehlman-Senecal, E., & Ayduk, Ö. (2015). This too shall pass: Temporal distance and the regulation of emotional distress. Journal of Personality and Social Psychology, 108(2), 356–375. https://doi.org/10.1037/a0038324

Choi, W. S., Woo, Y. S., Wang, S. M., Lim, H. K., & Bahk, W. M. (2022). The prevalence of psychiatric comorbidities in adult ADHD compared with non-ADHD populations: A systematic literature review. PLOS ONE, 17(11), e0277175. https://doi.org/10.1371/journal.pone.0277175 · Free full text (PMC)

Dippel, A., Brosschot, J. F., & Verkuil, B. (2024). Effects of worry postponement on daily worry: A meta-analysis. International Journal of Cognitive Therapy, 17(1), 160–178. https://doi.org/10.1007/s41811-023-00193-x

Kandeğer, A., Odabaş Ünal, Ş., Ergün, M. T., & Yavuz Ataşlar, E. (2024). Excessive mind wandering, rumination, and mindfulness mediate the relationship between ADHD symptoms and anxiety and depression in adults with ADHD. Clinical Psychology & Psychotherapy, 31(1), e2940. https://doi.org/10.1002/cpp.2940

Kircanski, K., Lieberman, M. D., & Craske, M. G. (2012). Feelings into words: Contributions of language to exposure therapy. Psychological Science, 23(10), 1086–1091. https://doi.org/10.1177/0956797612443830 · Free full text (PMC)

Liu, C. I., Hua, M. H., Lu, M. L., & Goh, K. K. (2023). Effectiveness of cognitive behavioural-based interventions for adults with attention-deficit/hyperactivity disorder extends beyond core symptoms: A meta-analysis of randomized controlled trials. Psychology and Psychotherapy: Theory, Research and Practice, 96(3), 543–559. https://doi.org/10.1111/papt.12455

McGowan, S. K., & Behar, E. (2013). A preliminary investigation of stimulus control training for worry: Effects on anxiety and insomnia. Behavior Modification, 37(1), 90–112. https://doi.org/10.1177/0145445512455661

National Institute for Health and Care Excellence. (2019). Attention deficit hyperactivity disorder: diagnosis and management (NICE guideline NG87). https://www.nice.org.uk/guidance/ng87

Solanto, M. V., Marks, D. J., Wasserstein, J., Mitchell, K., Abikoff, H., Alvir, J. M. J., & Kofman, M. D. (2010). Efficacy of meta-cognitive therapy for adult ADHD. American Journal of Psychiatry, 167(8), 958–968. https://doi.org/10.1176/appi.ajp.2009.09081123

Wang, D., Hagger, M. S., & Chatzisarantis, N. L. D. (2020). Ironic effects of thought suppression: A meta-analysis. Perspectives on Psychological Science, 15(3), 778–793. https://doi.org/10.1177/1745691619898795

Wegner, D. M., Schneider, D. J., Carter, S. R., & White, T. L. (1987). Paradoxical effects of thought suppression. Journal of Personality and Social Psychology, 53(1), 5–13. https://doi.org/10.1037/0022-3514.53.1.5

Resources

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What’s Next

Set the window before you close this page. Pick the time, pick the chair, and decide where the worries get written down between now and then. Two weeks of that will tell you more about what your worry actually does than another year of trying to think your way out of it at 2 a.m.

About the Author

Harold Robert Meyer is the founder and Managing Director of The ADD Resource Center, established in 1993, and a Senior Certified ADHD Coach, author, and international speaker. He co-founded CHADD of New York in 1989 and went on to serve on CHADD National’s board and executive committee, including as Vice President of Finance. He was elected to lead the Institute for the Advancement of ADHD Coaching. He can be reached at [email protected].

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