Judge symptoms by frequency and impairment, not just recognition
A few ADHD traits ringing true isn't a diagnosis. The criteria require crossing a threshold (6 of 9 symptoms in children, 5 in adults), each rated as happening 'often', present for six months, AND impairing major life activities. A trait becomes a disorder at the frequent, severe, impairing extreme — and 'it's just a spectrum' doesn't make it less real.
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It’s easy to read an ADHD symptom list, recognize yourself in a few items, and conclude either ‘I clearly have it’ or ‘everyone’s like that, so it’s not real’. Both skip the actual criteria, which are built precisely to separate a personality from a disorder.
Three filters do the work. First, the threshold: you need to cross a count — at least 6 of 9 symptoms in children, 5 in adults — not just endorse a couple. Second, the word ‘often’ in front of every symptom is deliberate: most people do not endorse a behaviour once it’s qualified by ‘often’, so an occasional occurrence isn’t a symptom, only a frequent one is. Third, and decisively, impairment: a disorder begins where impairment begins. Having symptoms that occur often over six months AND interfere with major life activities (work, school, relationships) is where a trait crosses into a disorder. A behaviour being common in the population doesn’t disqualify it — frequency, severity and resulting impairment are what turn an everyday behaviour into a marker of disorder (washing hands once a day versus twenty times with avoidance and gloves). And being ‘dimensional’ — a continuous trait, like anxiety or intelligence — doesn’t make ADHD any less of a real disorder; the disorder is simply the impairing extreme of that dimension, which is also what unlocks practical entitlements (medication, accommodations, legal protections). (Framing: Russell Barkley.)
