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What is neurodivergence?

Maybe you’re the adult who has always been “so smart, if you’d just apply yourself,” and you’re tired of hearing it. Maybe you’re the parent who just got a call from your kid’s teacher about attention, or meltdowns, or a kid who seems to live in his own world. Either way, a word came up, ADHD or autism or neurodivergent, and you want to know what it actually means.

What neurodivergent means

Neurodivergent means a brain that works differently from what the world treats as typical. It isn’t a diagnosis. It’s an umbrella word, and it covers ADHD, autism, AuDHD (both at once), dyslexia, and many other terms that might sound scary at first. The word came out of the autistic community, not out of a clinic, and it carries a point of view: these are different brains, not broken ones.

That’s half the picture. The other half is that a different brain living in a world built for someone else’s is disabled by that mismatch, and often by the brain itself too. Both are true at the same time. Holding both is the most useful way I know to think about it, because the first takes away the shame and the second gets you the support.

Executive function: the common thread

Most of what brings people to me, whatever the label, runs through executive function. That’s the brain’s self-management system: starting a task and finishing it, tracking time, holding things in working memory, switching gears, and putting the brakes on an impulse or a feeling.

Different kinds of neurodivergence hit it in different ways. An ADHD brain runs on interest and urgency far more than on importance, which is why you can’t make yourself do the boring thing that matters until it’s due at 11 p.m. An autistic brain often needs a clear, known process before it can start at all, and an unexpected change can bring the whole day down. Willpower has nothing to do with either one.

ADHD

ADHD stands for attention deficit hyperactivity disorder, and almost every word in that name gets it wrong. It isn’t a shortage of attention. It’s trouble steering attention. That dysregulation is why a lot of us can lock onto something interesting for six hours and can’t get through a two-paragraph email. And the hyperactivity isn’t always in the body. For a lot of us it’s a brain that won’t shut off.

That’s one of several stereotypes worth throwing out. ADHD isn’t a little-boy thing. Boys are nearly twice as likely as girls to have a diagnosis, but a lot of that gap is girls getting missed, because their ADHD tends to look like daydreaming and anxiety instead of bouncing off the walls. Plenty of us were diagnosed as adults. And ADHD shows up in every race. It isn’t rarer in Black or Latino kids. They show the same symptoms at school and are less likely to be diagnosed by kindergarten, and a 2020 review found ADHD at least as common among Black youth as in the general population. The CDC’s numbers count who got diagnosed, not who has ADHD.

It’s common. In 2024, 12 percent of U.S. kids ages 3 to 17 had been diagnosed at some point. In 2023, about 6 percent of U.S. adults, roughly 15.5 million people, had a current diagnosis, and more than half of them were diagnosed as adults. It also runs in families: across 37 twin studies, genes accounted for about 74 percent of the differences in ADHD between people.

Autism

Autism is a different way of taking in the world: differences in social communication, sensory processing, and how much you need routine and predictability. About 1 in 31 eight-year-olds in the U.S. was identified as autistic in the CDC’s latest count. Many autistic adults, especially women and people who learned to mask, didn’t find out until adulthood, because they spent years copying what everyone else did and paying for it in exhaustion.

Masking, autistic burnout, and the shutdown or meltdown after a day of holding it together were things autistic people described for years before researchers started measuring them. They’re well understood now, and they matter more to daily life than most checklists suggest.

AuDHD: both at once

Until 2013, the diagnostic manual didn’t allow ADHD and autism to be diagnosed in the same person. The DSM-5 changed that, and now it’s clear the two show up together all the time. Estimates of how many autistic people also have ADHD run from about 40 percent to as high as 50 to 70 percent, depending on the study.

People with both often call it AuDHD, and it can feel like a tug of war. One side needs novelty to stay engaged. The other needs routine to feel safe. Advice built for one side can backfire on the other, which is a big part of why AuDHD people get missed or misdiagnosed for years. I’m AuDHD myself, and it took until my mid-30s to find out.

Other kinds of neurodivergence

The umbrella is wider than ADHD and autism. Dyslexia and dyscalculia change how the brain handles reading and numbers. Dyspraxia, also called developmental coordination disorder, affects movement and planning. Tourette syndrome brings tics, and it often shows up alongside ADHD. A lot of these travel together, and most of them touch executive function somewhere.

Other things hit executive function too without being a neurotype: anxiety, depression, trauma, chronic illness, and poor sleep can all look a lot like ADHD from the outside. That’s why a good evaluation rules them out, and why it matters to get the picture right before you build around it.

The emotional side nobody mentions

The ADHD diagnostic criteria focus on attention, hyperactivity, and impulsivity. They don’t list emotions. But ask the clinicians who work with ADHD every day, or anyone living with it, and you’ll hear the same thing: feelings hit faster and harder and take longer to settle. Emotional dysregulation is part of how ADHD shows up, whether or not it made the criteria.

One piece of that has a name. Rejection sensitivity, often called rejection sensitive dysphoria or RSD, is an intense, fast reaction to criticism or rejection, real or perceived. RSD comes from clinical practice, not the diagnostic manual, and the people who live with it already know it’s real. For autistic people, the emotional overload often comes through the senses and the social load of a long day, ending in a shutdown or meltdown. Naming either one is often the first thing that makes it manageable.

Getting diagnosed

ADHD and autism are diagnosed by clinicians. For kids, that’s usually a pediatrician, psychologist, or psychiatrist. For adults, it’s a psychiatrist, psychologist, or another licensed provider who knows adult presentations. There’s no blood test or brain scan for either. A good evaluation looks at your history back into childhood, uses standardized tools, often asks people who know you, and rules out the things that can look similar.

For kids, expect forms for parents and teachers. For adults, expect to dig up old report cards, and expect that some providers still don’t take adult ADHD or autism seriously. It took me three psychiatrists. If one dismisses you, find another. I work with assessment providers and can point you to one.

Medication, coaching, and therapy

For ADHD, medication is one of the best-studied treatments in psychiatry, and for a lot of people it’s what makes everything else possible. About half of U.S. adults with ADHD were prescribed medication in the past year. Autism itself isn’t something medication treats, though it can help with things that come along with it, like anxiety or ADHD. Either way, pills don’t teach skills.

That’s where coaching comes in. Coaching builds the day-to-day systems around how your brain actually works. Therapy works on mental health, trauma, and the shame a lot of us carry from years of being misread. Many people use all three, and for a lot of them the combination works better than any one piece alone.

Where this leaves you

If you recognized yourself or your kid somewhere on this page, nothing is wrong with your character, and nothing is wrong with theirs. It’s a brain that works differently in a world that wasn’t built for it, and that’s something you can work with once you can see it.

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