The Curious Case of a Brain That Won't Follow Instructions

Adult ADHD, Part One: Why intelligence, good intentions, and trying harder don't always translate into getting things done.

An interesting mind doesn't always follow a predictable schedule. Understanding ADHD begins with recognizing the difference between knowing what matters and being able to act on it.

There is something rather peculiar about the human brain. It can remember the lyrics to a song you haven't heard since 1998 but cannot remember why you walked into the kitchen. It can spend three hours researching the best hiking boots available in North America, yet somehow cannot manage to pay the electric bill that's been sitting on the counter for two weeks. It can remember the model number of a fishing reel manufactured forty years ago but forget an appointment scheduled yesterday. I happen to think the fishing reel is interesting, too, although that probably doesn't help with the appointment.

For most of us, these are occasional inconveniences. For someone with Attention-Deficit/Hyperactivity Disorder (ADHD), they may be familiar features of everyday life. The particularly frustrating part is that the person may be intelligent, conscientious, capable, and genuinely determined to do better. Which raises an interesting question: if someone knows what needs to be done, wants to do it, and understands the consequences of not doing it, why doesn't it get done?

For years, our answers have sounded suspiciously like moral judgments. Try harder. Pay attention. Get organized. Stop procrastinating. Apply yourself. The advice is generally well-intended, and sometimes appropriate, but remarkably unhelpful when the underlying problem isn't a shortage of effort. Perhaps we've been asking the wrong question.

A Brain That Has Its Own Ideas

ADHD is a common neurodevelopmental condition affecting children and adults. Earlier diagnostic systems used terms such as hyperkinetic disorder, which sounds rather like a diagnosis for someone who has consumed six cups of coffee and discovered a trampoline. But ADHD isn't simply excessive energy, nor is it exclusively a childhood condition. It involves differences in how the brain regulates attention, activity, impulses, motivation, and the mental processes that allow us to translate intentions into behavior.

One of the peculiarities of ADHD is that attention isn't necessarily absent. Sometimes there's an astonishing amount of it. A person who cannot concentrate on paperwork for fifteen minutes may spend an entire afternoon learning everything there is to know about growing Japanese maples. Lunch becomes optional. Time disappears. Three weeks later, the Japanese maples may have lost their appeal, and the person is enthusiastically researching antique fountain pens.

This intense absorption is often called hyperfocus, although it isn't a formal diagnostic symptom. It illustrates something important about ADHD: attention can be easier to sustain when an activity is interesting, novel, challenging, or immediately rewarding. The difficulty often involves regulating attention, particularly when something important offers little immediate stimulation.

Unfortunately, adulthood consists largely of important things that aren't particularly interesting. Insurance forms, returning telephone calls, organizing paperwork, and remembering to schedule a dental appointment rarely inspire the same enthusiasm as discovering a new hobby. The brain may understand perfectly well which activities have consequences, but understanding consequences and feeling motivated to act are not necessarily the same thing.

Part of this involves dopamine, a neurotransmitter associated with motivation, reward learning, and the anticipation of something worth pursuing. ADHD involves differences in brain systems that use dopamine and other neurotransmitters, including norepinephrine. It would be misleading to describe ADHD as merely a dopamine deficiency, but differences in reward processing help explain why immediate interest can exert such a powerful influence on behavior.

In other words, the brain may be perfectly capable of paying attention. It just has some rather strong opinions about what deserves that attention.

The Invisible Work of Everyday Living

Psychologists use the term executive functioning to describe the mental processes involved in planning, organizing, remembering information, regulating impulses, solving problems, making decisions, and moving between activities. Think of these abilities as the administrative staff of your brain. Some people have an efficient department where appointments are scheduled, projects are organized, and messages are returned. Others have a department staffed by exceptionally creative employees who keep wandering into one another's offices with fascinating new ideas. The creativity is wonderful. The filing system is a disaster.

Consider working memory, the ability to hold information in mind long enough to use it. Someone walks into another room to retrieve something, notices a book on the table, remembers a conversation about the book, and returns twenty minutes later without the object they originally wanted. Nothing is necessarily wrong with their long-term memory. The difficulty involves keeping the original intention available while competing information demands attention.

Then there's time blindness, an informal term for difficulties sensing the passage of time, estimating duration, or anticipating how quickly a deadline is approaching. You have twenty minutes before you need to leave, which seems like plenty of time to look up one small thing on the internet. Apparently, somewhere between the history of the Roman Empire and a video explaining how to sharpen a chainsaw, forty-five minutes have passed. The appointment is now ten minutes away, and you haven't found your shoes. The problem isn't that you don't understand clocks. It's that your internal experience of time doesn't always cooperate with the one hanging on the wall.

Task initiation creates another contradiction. Imagine sitting comfortably in a chair, reading something interesting, knowing perfectly well that you need to get up and take a shower. You aren't opposed to showering. You have nothing against personal hygiene. In fact, you would probably enjoy the shower once you got there. But somehow the distance between the chair and the bathroom has become an expedition requiring considerable psychological preparation.

This distinction between motivation and capacity matters. A person can genuinely want to accomplish something while having difficulty organizing the mental processes necessary to begin. Once started, they may do perfectly well. Sometimes the hardest part of the entire activity is getting out of the chair.

These difficulties can become especially noticeable in adulthood. A bright child may have managed school reasonably well because parents, teachers, and schedules provided much of the organization. Then adulthood arrives, removes the scaffolding, and hands the person a mortgage, three insurance policies, a family calendar, and a password to an account they cannot remember creating. Intelligence alone is no longer enough to keep everything running.

When Boredom Becomes BORTURE

I recently encountered a wonderful informal word in some professional training: BORTURE, a combination of boredom and torture. It isn't a clinical diagnosis, but it captures something recognizable about the experience of understimulation.

Ordinary boredom is mildly unpleasant. You wait in line, stare out the window, and eventually find something else to think about. For some people with ADHD, boredom can feel intensely uncomfortable, almost like an internal demand that something, anything, needs to happen. The brain isn't merely asking for entertainment. It seems to be insisting upon it.

This can help explain fidgeting, pacing, tapping, humming, switching activities, opening another browser tab, or suddenly deciding that now would be an excellent time to reorganize the garage. Some of these behaviors involve stimming, short for self-stimulatory behavior. Repetitive movements, sounds, or sensory experiences can help people regulate attention, arousal, or emotional discomfort. Stimming isn't unique to ADHD, and not every repetitive behavior serves the same purpose, but sometimes bouncing a leg is simply helping someone concentrate.

Not all attempts to escape boredom are equally useful. Tapping a pencil is one thing. Repeatedly checking a phone during an intimate conversation is another. Impulsive spending, excessive stimulation-seeking, and difficulty delaying gratification can have more serious consequences. The immediate reward becomes unusually compelling, while the distant consequences seem less emotionally persuasive.

And this is where an important distinction emerges. Understanding why someone does something doesn't automatically make the behavior acceptable. But understanding the function of a behavior may help us find a better alternative.

The Exhausting Business of Appearing Normal

ADHD also affects social experiences, sometimes in ways that aren't immediately visible. A child who interrupts frequently may be viewed as rude. An adolescent who talks enthusiastically about a favorite subject may discover that peers aren't nearly as fascinated as they are. An adult may struggle to follow a conversation in a noisy restaurant while desperately trying to appear attentive.

Over time, some people learn to conceal these difficulties. This is often called masking: suppressing, hiding, or compensating for characteristics that might be judged negatively. Someone may work extraordinarily hard to appear organized, maintain attention, control movements, remember social expectations, and avoid revealing confusion. By the end of the day, they may be exhausted from the effort of appearing as though nothing was difficult.

The irony is that successful masking can make ADHD harder to recognize. A therapist encounters an articulate, accomplished professional who appears organized and composed. What remains invisible is the elaborate system of reminders, last-minute recoveries, anxiety, and private chaos required to maintain that appearance. The person may be functioning successfully, but at a considerable cost.

There can also be difficulties with emotional regulation. Frustration may escalate quickly, criticism may feel unusually painful, and impulsive reactions may arrive before reflection has had much opportunity to participate. Some people describe intense sensitivity to perceived rejection, although the popular term rejection sensitive dysphoria is not an established diagnostic category. Emotional experiences vary considerably among people with ADHD, and not every difficulty should be attributed to the diagnosis.

Still, imagine spending years hearing that you're careless, lazy, irresponsible, or simply not living up to your potential. Eventually, those descriptions may become something more than criticism. They become beliefs about who you are.

When ADHD Enters a Relationship

ADHD doesn't remain politely confined to the person who has it. Like most psychological difficulties, it eventually makes an appearance in relationships.

Consider a familiar marital disagreement. One partner says, "You never listen to me." The other responds, "Of course I listen to you!" Both may be describing their experiences accurately. One feels ignored, while the other genuinely cares but struggles to maintain attention during conversations. Over time, forgetfulness becomes indifference, distractibility becomes disrespect, and difficulty following through becomes evidence that the relationship isn't important.

These interpretations are understandable, but they aren't necessarily accurate. The person with ADHD may be struggling with attention, working memory, transitions, or impulse control. Meanwhile, the partner may be carrying additional responsibilities and feeling increasingly alone. Explaining the difficulty doesn't erase its impact, and asking for understanding doesn't eliminate the obligation to participate responsibly in the relationship.

Sometimes ADHD also complicates intimacy. Novelty may be especially engaging, transitions toward closeness may require effort, and emotional intensity can become confused with connection. But none of these patterns is universal, and ADHD shouldn't become a convenient explanation for every disappointing behavior in a marriage.

What interests me is the possibility of changing the conversation. Instead of arguing exclusively about whether someone cares enough, perhaps we can examine what keeps happening between what that person intends and what they actually do. That question invites curiosity without abandoning accountability.

Understanding Before Changing

People who have struggled with ADHD for years often develop explanations about themselves that are more damaging than the symptoms. I'm lazy. I'm unreliable. I never finish anything. I disappoint people. Something is wrong with me. I sometimes wonder how many adults have spent decades trying to correct what they believed was a character flaw without understanding the genuine difficulties involved.

Acceptance and Commitment Therapy offers a useful distinction here. We are not identical to the contents of our minds, our immediate reactions, or our recurring difficulties. A diagnosis may describe something important about how we function without defining everything about who we are. Someone can be distractible and deeply caring, impulsive and committed to becoming more thoughtful, or disorganized in one part of life while extraordinarily capable in another.

None of this means ADHD is secretly a wonderful gift or that every difficulty should be celebrated. It can be painful, frustrating, and consequential. But responsibility becomes more useful when it begins with an accurate understanding of the problem rather than another round of criticism.

Perhaps the central puzzle is that knowing what matters, wanting what matters, and doing what matters are three different psychological accomplishments. ADHD can make the distance between them surprisingly difficult to cross.

Which leads to the question we'll explore in Part Two: if telling someone to try harder hasn't worked, what might actually help?

As it turns out, I think we can learn something from a curious dog, a backyard fence, and the remarkable difference between demanding better behavior and making better behavior possible.

© 2026 Thomas Kurtz. All rights reserved.

Published by Thomas Kurtz Counseling, LLC.