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April 4, 2022
What are we to make of adults who exhibit the diagnostic criteria for ADHD, but are nevertheless high-functioning and successful? A trio of British investigators has just published six case studies that explore this question. It would have been better for them to have conducted a much larger, controlled research study but, in the absence of such data in the area, these case studies are intriguing and may help guide more informative research.
The authors recruited six successful men between the ages of 30 and 65 from a National Health Service tertiary service in London. Four were in long-term relationships, with children. All had good jobs.
In open-ended taped interviews of up to an hour in length, each was asked three questions:
1. What do you think are the advantages and disadvantages of having ADHD?
2. Please describe a time when you felt that your ADHD helped you to achieve something?
3. What aspects of your ADHD would you miss if it went away?
Hyper-focus in ADHD is generally considered a deficit, inset-shifting, and task-switching. But the authors report that participants associated it with productivity. One said, “I think the energy that the ADHD brain seems to have....it’s unfocused, quite scattered, chaotic and a bit random...but give that brain something that you can tune into, and it’s your interest, then all that random stuff just goes boom... I get this incredible intense concentration and that’s great for work.”
Participants also saw advantages in divergent thinking, with one stating, “I’m an artist.... a creative type... a Bohemian.... you are most likely to be a creative person if you are a divergent thinker....and not convergent... I am very creative and that’s through and through... I’m a fine art graduate, a musician, a published poet, an entrepreneur, a performer.”
All the participants reported being seen as nonconformists. Depending on a viewpoint, that can be seen as either detrimental or advantageous.
Impulsivity is a core symptom of ADHD. Participants however related it to bravery, and more specifically adventurousness, spontaneity, and thrill-seeking. One said, “thrill-seeking is an ADHD thing... I can list in my life have done white water rafting, bungee jumping, hand-glider pilot … I have done a lot in my life and achieved a lot and experienced a lot... Furthermore, I would see a lot of that as being quite positive, and a lot of that is ADHD drive.”
Another common theme was high energy and “spirit.” One participant said, “I’ve got all this energy.... a lot of energy... whatever it's to do with... nature/nurture/spiritual stuff.”
These testimonials are useful as a check on the usual narrative of impairment. ADHD does not predestine all it afflicts to an unfulfilling life. Many, often assisted by medication, still lead exciting, successful, rewarding lives. Yet, we must be cautious in concluding that these individuals were successful because of their ADHD. It is possible, even likely, that they had other strengths such as high intelligence that compensated for their ADHD symptoms. We can not know from this report if their lives had been even more fulfilling or successful in the absence of ADHD. See, for example, my blog about highly intelligent people with ADHD: https://www.linkedin.com/pulse/20141126141502-65669938-smart-people-can-have-adhd-too/.
While the authors concede that “generalizing the findings of this study is not easy to do,” they inexplicably “also argue that the positive aspects we found are relevant to other adults with ADHD regardless of sample size, age, gender or ethnicity.” It is not possible to draw such a definitive conclusion without a much larger sample.
On a hopeful note, they conclude, “This is a study that reaches out to people with lived experience of ADHD: service users, patients, family members, carers, partners, to say that not all symptoms of ADHD are maleficent. Recovery, high functionality, and flourishing with ADHD are possible. Too often people with lived experience hear about ADHD deficits, functional impairments, and associations with substance misuse, criminality, or other disadvantages on almost every level of life (school, work, relationships). … This study affirms the positive human qualities, assets, and attributes in ADHD that can promote and sustain high functioning and flourishing.” I fully endorse the idea that those with ADHD can have wonderful lives, especially if they receive appropriate treatment, both medical and psychological.
Jane Ann Sedgwick, Andrew Merwood, Philip Asherson, “The positive aspects of attention deficit hyperactivity disorder: a qualitative investigation of successful adults with ADHD,” ADHD Attention Deficit and hyperactivity Disorders (2018), doi.org/10.1007/s12402-018-0277-6.
Antshel, K. M., Faraone, S. V., Maglione, K., Doyle, A. E., Fried, R., Seidman, L. J. & Biederman, J. (2010). Executive functioning in high-IQ adults with ADHD. Psychol Med 40, 1909-18.
Rommelse, N., Antshel, K., Smeets, S., Greven, C.,Hoogeveen, L., Faraone, S. V. & Hartman, C. A. (2017). High intelligenceand the risk of ADHD and other psychopathology. Br J Psychiatry.
Rommelse, N., van der Kruijs, M., Damhuis, J., Hoek,I., Smeets, S., Antshel, K. M., Hoogeveen, L. & Faraone, S. V. (2016). Anevidenced-based perspective on the validity of attention-deficit/hyperactivitydisorder in the context of high intelligence. Neurosci Biobehav Rev 71, 21-47.
The Background:
Many studies have tried to determine whether exercise improves executive function in children and adolescents with ADHD, but their conclusions have not always agreed. To bring the evidence together more clearly, the research team re-analyzed the available randomized controlled trials using a statistical approach designed to handle the kinds of data common in this field.
Executive functions are skills that help us control attention and behavior. The three core components are inhibitory control (the ability to stop or override impulses), working memory (holding and manipulating information in mind), and cognitive flexibility (switching between tasks or perspectives). Because a single study often reports multiple tests that tap these different skills, one study can contribute several related results (called effect sizes). Traditional meta-analysis typically treats each effect size as independent; when they are actually correlated, that can bias the combined estimate or force reviewers to discard useful data.
To avoid those problems, the team used a three-level meta-analysis. In this model, variance in the data is separated into three sources:
(1) sampling variance: the random error in each measured effect
(2) within-study variance: differences between multiple effect sizes reported in the same study
(3) between-study variance: differences in effects from one study to another
Accounting for all three levels makes it possible to include every eligible effect size from each study, which preserves information and statistical power and reduces the risk that correlations among effect sizes will overstate results.
The Study:
The review focused on long-term exercise interventions and also tested whether certain factors might change (or moderate) the effects. These potential moderators included participant age, which executive-function subcomponent was measured, the type of exercise, how long each session lasted, the total length of the intervention, and how often sessions occurred.
To be included, studies had to be randomized controlled trials (RCTs) of children or adolescents aged 6–18 diagnosed with ADHD. RCTs randomly assign participants to an intervention or a comparison group and are considered a strong design for testing cause-and-effect. The exercise programs had to be structured and last at least six weeks. Comparison groups varied by study and could include usual care, medication, sedentary activities, health education, waiting lists, or everyday life without the specific exercise program. Fifteen studies including 658 participants met these criteria.
The Results:
The three-level meta-analysis showed that long-term exercise interventions were associated with moderate-to-strong improvements in overall executive function. When statistical outliers were removed, the result remained positive: 13 RCTs with 598 participants showed moderate improvements. In plain terms, this suggests improvements that are noticeable and meaningful on average, not just tiny changes that are unlikely to matter in daily life.
Those moderate gains appeared across all three executive-function domains (inhibitory control, working memory, and cognitive flexibility, meaning the benefits were not limited to a single cognitive skill. The authors also examined exercise type:
“Open-skill” activities, which require reacting to changing situations (for example, many team sports, martial arts sparring, or racket sports), produced moderate-to-large improvements.
“Closed-skill” activities, which are more predictable and repetitive (for example, running or stationary cycling), showed only small, non-significant improvements in this analysis.
The review also found dose-related patterns. Interventions lasting at least twelve weeks were about three times more effective than interventions of six to twelve weeks, and sessions longer than an hour were about twice as effective as shorter sessions. Benefits were largest among adolescents aged 13 and older.
These patterns suggest that longer, more intensive programs, and those that involve open-skill activities, may produce larger gains. However, the authors caution that the overall certainty of the evidence was low. “Low certainty” means that limitations in the available studies (for example, small sample sizes, variability in methods, or possible bias) make it difficult to be confident that the observed effects will hold up exactly the same way in future research. Some subgroup findings (age, intervention duration, and others) were based on only a small number of effect sizes, so those moderator results should be treated as exploratory rather than definitive.
The Take-Away:
In short, this three-level meta-analysis suggests that regular, structured exercise (particularly longer programs and open-skill activities) may help improve executive functions in children and adolescents with ADHD. The evidence is promising but not yet strong enough to be considered conclusive, and the authors recommend more, larger randomized trials to confirm specifically which types and doses of exercise are most effective. Moreover, neither this meta-analysis or others show that exercise can replace standard treatments for reducing the core symptoms of ADHD (inattention, hyperactivity, impulsivity).
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When a patient sits down in an examination room today, their physician is rarely the first voice they have heard regarding their symptoms. More often, an algorithm got there first.
According to a nationwide survey by The Physicians Foundation conducted with Medscape, medical misinformation is no longer a peripheral nuisance; it is a daily clinical crisis. Nearly all surveyed physicians (99.9%) reported that their patients had been influenced by medical misinformation over the past year.
While misinformation affects every discipline from oncology to cardiology, few conditions sit as squarely in the algorithmic crosshairs as ADHD. From viral 30-second video clips trivializing complex executive dysfunction to predatory wellness campaigns attacking evidence-based medications, the attack on evidence directly threatens the well-being of children and adults living with ADHD.
Key Findings from The Physicians Foundation
The survey, which captured perspectives from over 1,000 practicing physicians, paints a sobering picture of how unverified information disrupts modern medicine:
The challenge is especially acute in communities already facing systemic healthcare hurdles:
As the survey illustrates, 38% of rural physicians encounter "a great deal" of health misinformation, far exceeding their suburban (21%) and urban (25%) peers. In rural and underserved regions, where access to developmental pediatricians and psychiatrists is already scarce, online narratives frequently fill the void left by provider shortages.
Why ADHD Is Ground Zero for Health Misinformation
Despite decades of neurobiological research confirming its validity, ADHD remains uniquely vulnerable to digital distortions in three distinct ways:
1. The Dueling Traps: "Life Hack" Trivialization vs. Denialism
Social media platforms host billions of views under ADHD-related tags. While digital awareness has helped destigmatize mental health, it frequently collapses nuanced clinical criteria into broad, relatable personality traits such as zoning out during a boring meeting, misplacing keys, or feeling restless.
This creates two opposing misinformation hazards:
2. Medication Stigma and Treatment Nonadherence
The survey found that 49% of doctors frequently encounter medication nonadherence and 45% face treatment refusal due to misinformation.
In ADHD care, this finding is acutely visible around stimulant pharmacotherapy. First-line stimulant medications have high response rates and extensive safety profiles spanning decades. Yet online narratives persistently frame them as dangerous narcotics, accusing parents of "drugging their children" or claiming medications permanently alter a child's brain.
Terrified parents frequently delay initiating care or discontinue effective regimens without clinical oversight, turning instead to unproven, expensive alternative supplements, unverified nootropics, or restrictive elimination diets.
3. Escalating Anxiety and Parental Guilt
With 66% of physicians observing increased patient anxiety driven by online health claims, the emotional toll on families cannot be overstated. Parents of newly diagnosed children are inundated with contradictory advice: one post warns that failing to medicate guarantees academic failure, while another claims that medicating guarantees addiction.
Adults navigating a new diagnosis experience similar distress, second-guessing their lived experiences and feeling deep shame over their executive dysfunction.
4. The 15-Minute Primary Care Bottleneck
Because pediatricians and family physicians handle most ADHD diagnoses and management, the survey’s warning that 70% of primary care providers feel hamstrung by misinformation hits ADHD patients first.
Deconstructing a viral video, explaining the difference between therapeutic stimulant dosing and substance misuse, and addressing years of internalized stigma takes time. In a standard 15-to-20-minute primary care visit, providers are forced to choose between rushing through diagnostic assessments or leaving patients' misinformed fears unaddressed.
Rebuilding the Partnership: Steps for Patients, Families, and Providers
Addressing the erosion of trust requires practical, collaborative shifts from both sides of the examination table:
For Patients and Caregivers
For Healthcare Providers and Systems
Medical misinformation thrives in the gap between a patient's vulnerability and the clinical system's time constraints. By recognizing how digital noise distorts ADHD, patients and clinicians can work together to replace viral anxiety with evidence-based care.
The Background:
Adults with ADHD often struggle more at work than their peers without ADHD. They tend to underperform on job tasks, advance less in their careers, miss more workdays, and face higher rates of unemployment. Research from several countries, including Japan, points to two main channels through which ADHD erodes workplace productivity: absenteeism, or missing work entirely, and presenteeism, showing up but performing below one’s usual capacity. Both problems typically trace back to ADHD’s core symptoms: difficulty sustaining attention, managing time, staying organized, and navigating relationships with coworkers and supervisors.
Stigma compounds these challenges. Employers and the public often have limited understanding of how ADHD manifests in adults, which can translate into unfair treatment or diminished job opportunities. That fear of judgment, in turn, discourages some people from seeking a psychiatric evaluation in the first place, delaying diagnosis and treatment, and with it, delaying access to support that could improve both their work performance and daily functioning.
Japan does offer medical care and workplace support for adults with ADHD. Options include social skills training, which teaches practical strategies for communication and collaboration; self-reliance support programs that help with daily living and job management; and, in more severe cases, a disability pension for those unable to work. Still, it remains unclear whether these employment-support services are robust enough to help people who want to work actually secure and hold onto steady jobs.
The impact of ADHD extends beyond the individual diagnosed. Supporting a family member with ADHD can be emotionally and logistically demanding, often cutting into a caregiver’s own capacity to work and earn, meaning that the economic toll of ADHD ripples outward.
The Research:
Most prior research on the economic costs of ADHD, in both children and adults, has come from the United States and Europe, focusing on medical expenses, lost productivity, and social support spending. Until recently, no one had attempted a comparable estimate for adult ADHD in Japan or elsewhere in Asia.
To address that gap, a Japanese research team conducted a cross-sectional observational study (meaning they gathered data at a single point in time and examined existing patterns rather than testing an intervention). They drew on three sources: a retrospective review of medical insurance claims, a web-based survey of affected individuals, and official government statistics. Combining these, they estimated annual costs from a societal perspective, accounting for medical expenses, lost work productivity, and government welfare spending, as well as productivity losses among family caregivers.
The claims analysis relied on JMDC, a nationwide database of insurance receipts and medical examination records spanning multiple health insurers and covering 14 million residents. Within it, the researchers identified 30,730 adult outpatients diagnosed with ADHD.
The Results:
Annual medical costs per adult with ADHD (combining outpatient visits and medication) averaged 284,000 yen (about $1,750). Scaling this figure to match the age and sex distribution of Japan’s adult population produced a nationwide estimate of 74 billion yen (about $455 million).
A separate web-based survey found that, after statistical matching, nearly half of adults with ADHD received a disability pension, yielding a nationwide estimate of 95 billion yen (about $585 million) in ADHD-related pension payments. Including public employment support services, total social welfare spending reached 390 billion yen (about $2.4 billion).
Workplace productivity losses were substantial as well. With an unemployment rate more than four percentage points higher than the general population, unemployment-related losses among adults with ADHD totaled an estimated 50 billion yen. Lower average incomes among those employed accounted for a further 315 billion yen. Once absenteeism and presenteeism were factored in, total productivity losses reached 570 billion yen (about $3.5 billion).
Family members bore a comparable burden: productivity losses among adult relatives of people with ADHD were estimated at 540 billion yen (about $3.3 billion).
Taken together, these figures point to a nationwide socioeconomic burden of 1.6 trillion yen (roughly $11 billion), equivalent to nearly $30,000 per adult with ADHD.
The Take-Away:
“This study, the first estimate of the annual socioeconomic burden of adult ADHD in Japan, underscores the necessity of providing appropriate support to adult patients with ADHD and their families and the prevention of comorbidities,” the research team concluded. “In particular, measures to support participation in the workplace to improve patients’ quality of life and reduce the social and economic burden should be explored. Furthermore, it is hoped that estimating the annual socioeconomic burden of adult ADHD will help clarify policy priorities in Japan.”
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