ADHD Traits Appear Three Times More Often in Distance Runners

What the Study Found

Researchers Volker Scheer, Beat Knechtle, and colleagues administered the ASRS-5 — a validated five-question ADHD self-report screening tool — to 601 endurance and ultra-endurance runners (222 women, 379 men, mean age 42.8 years). Overall, 9.7% screened above the clinical cutoff for ADHD traits, versus 3.1% in the general adult population, representing roughly a threefold difference.

The gap held across both sexes: women screened at 10.8%, men at 9.0%. It showed up across distance categories: half-marathoners (14.8%), marathoners (8.0%), and ultramarathoners (8.7%), though those differences between distance groups were not statistically significant. Age was the only significant predictor (p = 0.03), with younger runners under 40 showing the highest rates. The study, published in Acta Psychologica (2026) by Scheer, David Valero, Encarna Valero, Katja Weiss, Thomas Rosemann, and Knechtle, represents one of the first comprehensive ADHD screenings of endurance sport populations.

The Frame the Coverage Gets Wrong — and What the Science Actually Says

Most coverage of this study leads with: “runners are more likely to have ADHD.” The study’s own authors propose the opposite direction. The traits clustered under the ADHD label — hyperfocus, sensation-seeking, and reward-driven motivation — appear to draw people toward endurance sport, where those same traits become strengths: sustained effort across hours, high discomfort tolerance, intense goal-focus without external deadlines or supervision. Some participants described coming to the sport as a way to channel energy and regulate focus.

That framing matters for parents. The deficit model was built around the classroom: extended sitting, quiet compliance, sequential task completion. ADHD traits produce the opposite, and that collision is real and produces genuine struggle. But the model that describes the collision describes less than half of the picture. Research consistently finds that aerobic exercise improves ADHD-related attention in children immediately — boosting dopamine and brain-derived neurotrophic factor (BDNF), the same neurochemical mechanisms that support learning and self-regulation. Multiple meta-analyses of randomized controlled trials confirm it. The connection between movement and ADHD-affected attention is not anecdotal. The brain researchers image in their fMRI studies is the same one that shows up three times more often at finish lines. What changes is the setting.

The 2025 IDA definition of dyslexia — the field’s first major update in 23 years — formally acknowledged environmental factors as part of the picture. The same principle applies here. These traits don’t change. What changes is whether the environment works with them or against them.

What This Means for Your Child

None of this means your child will run marathons, and endurance running is not an ADHD treatment. This was a study of adults. Correlation is not causation. But the finding raises a question parents rarely get to ask at a school meeting: what environment brings out the best in a brain wired this way?

Schools are engineered for sustained stillness, quiet compliance, and sequential task completion. When a child with ADHD traits struggles at those demands, the system produces paperwork. What the research also shows is that movement-integrated learning, physical activity during the school day, and structured exercise breaks improve ADHD-related attention meaningfully and durably for children. A 2026 perspectives paper on physical activity and learning found children with ADHD specifically highlighted movement as a tool for focus and mood. That’s not a lifestyle tip. It’s a data-backed claim about how this type of brain functions in the right environment.

Knowing this doesn’t make the classroom struggle disappear. But it gives parents the lens to ask sharper questions: Is the plan building underlying skills, or managing surface behavior? Are there movement breaks built into the day? Is the treatment accounting for the whole brain, not only the part that fails in row seats? The deficit framing answers “what’s wrong.” The full picture asks “under what conditions does this brain work well” — and that question is worth fighting for.