What Is ADHD?

Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by persistent patterns of inattention, hyperactivity, and/or impulsivity that interfere with academic, social, and family functioning. It is one of the most common disorders in childhood, affecting 5-7% of school-aged children.

We understand that receiving an ADHD diagnosis can stir a mix of feelings — relief at understanding the difficulties, but also concern about the future. It is essential to understand that ADHD is not a lack of intelligence, laziness, or the result of poor parenting. It is a neurobiological difference in how the brain regulates attention and behavior.

ADHD presents three subtypes: predominantly inattentive (more common in girls, frequently underdiagnosed), predominantly hyperactive-impulsive (more evident in young boys), and combined (the most frequent). Presentation varies with age — motor hyperactivity tends to decrease in adolescence, while inattention persists.

01

Neurobiological Basis

ADHD stems from differences in how the prefrontal cortex's dopaminergic and noradrenergic circuits mature and function — not from educational failures.

02

Executive Function

The central deficit is in executive functions: sustained attention, inhibitory control, working memory, planning, and emotional regulation.

03

Preserved Potential

With proper support, children with ADHD can excel. Many show creativity, divergent thinking, and hyperfocus in areas of interest.

Pathophysiology

ADHD is associated with differences in the function of the prefrontal cortex (PFC), the brain region responsible for executive functions: sustained attention, inhibitory control, working memory, cognitive flexibility, and emotional regulation. Neuroimaging studies demonstrate that the PFC of children with ADHD has smaller volume, reduced activation during attention tasks, and slower maturation.

The central neurotransmitters in ADHD are dopamine and norepinephrine. Dopamine regulates motivation, reward, and salience signaling — what is important to pay attention to right now. Norepinephrine modulates the state of alertness and the filtering of stimuli. In ADHD, dopaminergic and noradrenergic neurotransmission in the PFC is suboptimal, resulting in difficulty maintaining focus, filtering distractions, and inhibiting impulses.

The heritability of ADHD is 70-80% — one of the highest among psychiatric disorders. Genes involved include the dopamine receptors (DRD4, DRD5) and the dopamine transporter (DAT1). Environmental factors such as prematurity, low birth weight, prenatal exposure to tobacco and alcohol, and early adversity modulate genetic expression.

Neurophysiology of ADHD: prefrontal cortex, dopaminergic (mesocortical) and noradrenergic (locus coeruleus-PFC) circuits, executive functions, and how stimulants work
Neurophysiology of ADHD: prefrontal cortex, dopaminergic (mesocortical) and noradrenergic (locus coeruleus-PFC) circuits, executive functions, and how stimulants work
Neurophysiology of ADHD: prefrontal cortex, dopaminergic (mesocortical) and noradrenergic (locus coeruleus-PFC) circuits, executive functions, and how stimulants work

ADHD SUBTYPES

SUBTYPEMAIN FEATURESTYPICAL PROFILE
InattentiveDifficulty concentrating, forgetfulness, disorganization, distractibilityMore common in girls; often underdiagnosed because it causes no behavioral disruption
Hyperactive-ImpulsiveMotor agitation, difficulty waiting, excessive talking, acting without thinkingMore evident in young boys; often the first to be referred
CombinedCriteria for inattention AND hyperactivity-impulsivityMost common subtype; combines focus difficulties with behavioral regulation issues

Symptoms

Symptoms must be present in at least two settings (school and home), begin before age 12, and cause significant functional impairment. Assessment must consider context — behaviors that are normal for the age should not be confused with ADHD.

Critérios clínicos
06 itens

Manifestations of ADHD

  1. 01

    Sustained inattention

    Trouble sustaining attention on long tasks (homework, classes). Seems not to listen when spoken to directly. Makes careless mistakes.

  2. 02

    Disorganization and forgetfulness

    Loses school supplies, forgets appointments, struggles to follow multi-step instructions, disorganized backpack and bedroom.

  3. 03

    Motor hyperactivity

    Cannot stay seated, constantly fidgets with hands and feet, runs and climbs in inappropriate situations. In adolescents: inner restlessness.

  4. 04

    Impulsivity

    Answers before the question is finished, struggles to wait their turn, interrupts conversations, acts without thinking about consequences.

  5. 05

    Emotional dysregulation

    Intense frustration, irritability, trouble handling transitions and plan changes. Often underestimated in diagnosis.

  6. 06

    Paradoxical hyperfocus

    Capable of intense, prolonged concentration on high-interest activities (video games, drawing). Doesn't contradict the diagnosis — reflects altered dopaminergic regulation.

Diagnosis

Diagnosis is clinical, based on the DSM-5 criteria and on multi-informant assessment (parents, teachers, child). There is no blood test, imaging study, or neuropsychological test that confirms or excludes ADHD in isolation.

Assessment should include a detailed developmental history, review of school report cards and reports, standardized scales (SNAP-IV, CPRS) completed by parents and teachers, evaluation of comorbidities (anxiety, depression, learning disorders, ASD), and exclusion of differential diagnoses (sleep disorders, sensory deficits, family issues).

5-7%
PREVALENCE IN SCHOOL-AGED CHILDREN
70-80%
GENETIC HERITABILITY
60-70%
PERSIST WITH SYMPTOMS IN ADULTHOOD
50-70%
PRESENT AT LEAST ONE COMORBIDITY

Differential Diagnosis

Inattention and hyperactivity can have several causes. Diagnosing ADHD requires ruling out conditions that mimic or coexist with the disorder. ADHD is diagnosed by a psychiatrist or pediatric neurologist according to DSM-5/ICD-11 criteria; the physician acupuncturist works in coordination with the diagnostic team.

DIAGNÓSTICO DIFERENCIAL

Differential Diagnosis

Generalized Anxiety

  • Inattention from excessive worry, not from cortical disinhibition
  • Difficulty concentrating from anxious rumination
  • Avoidance of situations, not impulsivity
  • Symptoms worsen in threatening situations; ADHD worsens in boring tasks
Sinais de Alerta
  • Anxiety can be comorbid with ADHD — ruling out one does not rule out the other

Testes Diagnósticos

  • Anxiety scales (SCARED, GAD-7)
  • Clinical history: context of symptoms
  • Neuropsychological assessment differentiates profiles

Medical acupuncture may serve as an adjuvant for childhood anxiety; first-line treatment is cognitive-behavioral therapy (CBT), with pharmacotherapy (SSRIs) indicated by a psychiatrist in moderate to severe cases.

Specific Learning Disorder

  • Inattention specific to the affected subject (reading, math)
  • Performance well below what intelligence would predict in a specific area
  • Attention preserved in other subjects or activities
  • Dyslexia, dyscalculia, dysorthography
Sinais de Alerta
  • Untreated language SLD causes progressive school difficulty and may mimic ADHD

Testes Diagnósticos

  • Neuropsychological assessment with targeted reading and math tests
  • Speech-language assessment (phonological awareness)
  • WISC: profile with specific discrepancies

SLD requires targeted speech-language and psychopedagogical intervention. Acupuncture can help reduce the performance anxiety often associated with it.

Bipolar II Disorder

  • Hyperactivity and irritability may mimic ADHD during hypomanic phases
  • Clearly cyclic mood — periods of euphoria alternating with sadness
  • Grandiosity, decreased need for sleep, racing thoughts
  • Family history of bipolarity
Sinais de Alerta
  • Stimulants in bipolar disorder may trigger mania
  • Correct diagnosis is critical before pharmacotherapy

Testes Diagnósticos

  • Longitudinal clinical history (mood cycles)
  • Pediatric mood scales (CMRS-P)
  • Specialized psychiatric assessment

Bipolar disorder is managed by a psychiatrist with mood stabilizers (lithium, anticonvulsants, atypical antipsychotics); acupuncture may play a limited complementary role for comorbid anxiety or insomnia, without replacing pharmacotherapy.

Substance Abuse

  • Inattention and impulsivity in adolescents may signal substance abuse
  • Cannabis: apathy, lack of motivation, cognitive impairment
  • Untreated ADHD is a risk factor for substance abuse
  • Sudden onset in adolescence without childhood history
Sinais de Alerta
  • Untreated ADHD raises substance-dependence risk 2-3 times
  • Substance abuse may mask or exacerbate preexisting ADHD

Testes Diagnósticos

  • Substance screening (CRAFFT in adolescents)
  • Longitudinal history: did symptoms precede use?
  • Urinary toxicology when indicated

Auricular acupuncture (NADA protocol) has been studied as an adjuvant in chemical dependence; the evidence is heterogeneous, and most guidelines (NIDA, ASAM) do not recommend it as sole treatment.

Chronic Insomnia as a primary cause

  • Sleep-deprived children present with inattention, irritability, and hyperactivity
  • Snoring or obstructive apnea (adenoid/tonsil hypertrophy)
  • Worsens on weekends or vacations (when sleeping more)
  • History of difficulty initiating or maintaining sleep
Sinais de Alerta
  • Untreated sleep apnea can mimic or exacerbate ADHD — treating the apnea may resolve the symptoms

Testes Diagnósticos

  • Sleep diary for 2 weeks
  • Polysomnography if apnea is suspected
  • Pediatric actigraphy

Acupuncture may serve as an adjuvant for childhood insomnia; pediatric evidence remains limited. When pseudo-inattention results from sleep deprivation, correcting sleep (sleep hygiene, adapted CBT-I, managing organic causes) is the mandatory step before considering ADHD pharmacotherapy.

ADHD versus Generalized Anxiety

Generalized anxiety disorder (GAD) and ADHD share inattention, concentration difficulties, and motor restlessness, making the differential diagnosis clinically challenging — especially because the two disorders are often comorbid (30-40% of ADHD patients have some anxiety disorder). The key distinction lies in the mechanism of inattention: in ADHD, it results from difficulty inhibiting external distractions and from the neurobiological substrate of prefrontal-cortex dopaminergic dysfunction; in GAD, inattention follows from anxious rumination — the mind is occupied with worries, not scattered by external stimuli. In ADHD, symptoms worsen in monotonous or low-interest tasks; in GAD, they worsen in situations perceived as threatening.

Formal neuropsychological assessment — with tests of sustained and executive attention (WCST, CPT, Trail Making), complemented by targeted scales (Conners, SCARED, GAD-7) and detailed longitudinal history — allows greater diagnostic precision. Acupuncture has robust evidence for anxiety disorders and may be the main treatment when anxiety is the primary cause of attentional symptoms — avoiding unnecessary stimulant exposure in children with pure anxiety.

Bipolar II Disorder

Bipolar II disorder (BDII) is a critical differential diagnosis in ADHD, especially in adolescents and young adults, because hypomania can manifest with hyperactivity, talkativeness, racing thoughts, decreased need for sleep, and impulsivity — symptoms that overlap with combined-type ADHD. The clinical distinction rests on the episodic and cyclic nature of mood in BDII: symptoms arise in time-limited episodes (days to weeks), with interepisodic periods of normal or depressive functioning, and are not a permanent trait since childhood as in ADHD. Grandiosity, decreased sleep without fatigue, and impulsive sexual or financial behavior suggest hypomania, not ADHD.

The distinction is critical because pharmacotherapy differs radically: stimulants in undiagnosed BDII can trigger or precipitate frank mania, with serious consequences. Specialized psychiatric assessment is mandatory before starting methylphenidate in any patient with a family history of bipolarity, mood cycling, or paradoxical response to stimulants. Acupuncture can support mood stabilization as an adjuvant to mood stabilizers, avoiding unnecessary stimulant exposure while diagnosis is being clarified.

Chronic Insomnia as a Cause of Attentional Symptoms

Chronic sleep deprivation produces a symptom pattern that mimics ADHD with remarkable fidelity: inattention, hyperactivity, impulsivity, irritability, and trouble with emotional regulation. In children, sleep deprivation — from any cause — often manifests as hyperactivity (not somnolence, as in adults), making the differential diagnosis especially important in the pediatric age group. Obstructive sleep apnea, caused by adenoid and tonsil hypertrophy in children, is the most common cause of insomnia and sleep deprivation in this age group and should be systematically investigated in any child with recent-onset "ADHD" or with reported nocturnal snoring.

Differential diagnosis is made by sleep diary over at least two weeks and, when indicated, by polysomnography. Resolution of the apnea (adenotonsillectomy in children) can completely normalize attentional symptoms, with no need for ADHD pharmacotherapy. Acupuncture has moderate evidence in adults with insomnia; pediatric data are limited. Use in children should be individualized and integrated with established non-pharmacological approaches. The physician acupuncturist should always investigate sleep quality before attributing inattention to ADHD.

Treatment

Treatment of ADHD is multimodal, combining psychoeducational interventions, environmental adaptations, behavioral therapy, and, when indicated, pharmacotherapy. The approach should be individualized according to age, severity, comorbidities, and family preferences.

Psychoeducation

Educate family and school about ADHD: neurobiological nature, realistic expectations, management strategies. Reduce guilt and stigma. Engage the child in understanding their differences.

Environmental and School Adaptations

Sit at the front, short clear instructions, break tasks into steps, use visual organizers (checklists, agendas), regular breaks, positive reward system.

Behavioral Therapy

Parent training in behavioral management (first line for preschoolers). CBT adapted for older children, focusing on organization, emotional regulation, and social skills.

Pharmacotherapy (when indicated)

Methylphenidate or lisdexamfetamine (first line) increase dopamine and norepinephrine in the PFC. Non-stimulants: atomoxetine, guanfacine. Individual titration. Monitor growth and adverse effects.

Acupuncture as Treatment

Acupuncture has been investigated as a possible complementary therapy in ADHD. The evidence is limited, with meta-analyses of heterogeneous quality suggesting modest effects when combined with conventional treatment — results that should be interpreted cautiously given the variability of protocols and the absence of large-scale pediatric trials. The proposed mechanisms involve hypothetical modulation of neurotransmitter systems but remain under investigation.

Preliminary functional neuroimaging studies explore effects of acupuncture on cortical circuits involved in attention, including frontoparietal networks and the default mode network. These data are exploratory and do not, by themselves, establish clinical benefit in ADHD.

Acupuncture does not replace methylphenidate, lisdexamfetamine, or other components of the multimodal treatment indicated by the psychiatrist. When considered, it should be framed as adjuvant for associated symptoms (sleep, comorbid anxiety), always in coordination with the physician responsible for the ADHD. In pediatric practice, we preferentially use needle-free modalities, reserving needles for children who cooperate and accept the procedure.

Prognosis

ADHD is a chronic condition — not a phase the child simply outgrows. About 60-70% of those diagnosed in childhood carry clinically significant symptoms into adulthood, though the presentation changes (less motor hyperactivity, more inattention and emotional dysregulation).

With proper treatment, the prognosis is good. Children who receive early multimodal support show better academic performance, fewer behavioral and social problems, and lower risk of comorbidities such as depression, anxiety, and substance abuse.

Many adults with ADHD turn their traits into strengths — creativity, divergent thinking, energy, and hyperfocus can be great qualities when properly channeled. ADHD is a difference, not necessarily a deficiency — it depends on the fit between the person and their environment.

Myths and Facts

Myth vs. Fact

MYTH

ADHD is a lack of discipline or limits

FACT

ADHD is a neurobiological disorder with 70-80% heritability and documented structural and functional alterations in the prefrontal cortex. It is not the result of permissive parenting.

MYTH

If they can focus on video games, they don't have ADHD

FACT

Hyperfocus on high-stimulus activities is characteristic of ADHD. Video games deliver constant dopamine; school tasks do not. The problem is attention regulation, not attention capacity.

MYTH

Medication turns the child into a zombie

FACT

At the right dose, stimulants do not alter personality. If the child becomes excessively apathetic, the dose needs adjustment. The goal is to improve executive functions while preserving the child's personality.

MYTH

ADHD only exists in hyperactive boys

FACT

Girls with inattentive ADHD are often underdiagnosed because they show no visible hyperactivity. Quiet inattention is as harmful as evident hyperactivity.

When to Seek Help

If you notice persistent difficulties with attention, organization, or impulse control that affect your child's school performance and social relationships, a professional evaluation can bring clarity and direct appropriate support.

FREQUENTLY ASKED QUESTIONS · 10

Frequently Asked Questions about ADHD

Symptoms must begin before age 12, but diagnosis can be made at any age. In preschoolers (3-5 years), diagnosis is possible but requires careful evaluation, since hyperactivity is normal at that age. In adults, ADHD can be diagnosed retrospectively when there is a childhood history of symptoms. Late diagnosis in women is common — many discover ADHD in adulthood.

ADHD has no cure in the sense of complete remission, but it is highly manageable. About 60-70% carry symptoms into adulthood, though generally less intense. With proper support (educational, therapeutic, and when indicated pharmacological), most children with ADHD function excellently as adults. Many develop effective compensatory strategies and have highly successful careers.

Methylphenidate is the most studied medication in child psychiatry, with more than 60 years of research. At therapeutic doses in children with a confirmed ADHD diagnosis, it does not cause dependence — and paradoxically reduces the risk of substance abuse in adolescence. The most common adverse effects are reduced appetite and trouble sleeping, generally manageable by adjusting timing and dose. Regular physician monitoring is essential.

Yes. The predominantly inattentive subtype is more common in girls and frequently underdiagnosed. These children do not cause problems in the classroom — they are quiet, "daydreamers", seem not to listen. Late diagnosis leads to years of silent suffering, low self-esteem, and performance below their potential. Any child with adequate intelligence but inconsistent school performance deserves evaluation.

There is no robust scientific evidence that a gluten-free diet improves ADHD in children without celiac disease. As for sugar: controlled studies show it does not cause hyperactivity in children — this myth has been refuted. However, a balanced diet rich in omega-3 (which may have a modest but real effect on attention) with regular meals helps regulate mood and attention.

Not as sole treatment in moderate to severe ADHD. Medical acupuncture can be used as an adjuvant to multimodal treatment — especially to improve sleep (which amplifies attention benefits), reduce comorbid anxiety, and support emotional regulation. In mild ADHD, it can be tried as part of multimodal treatment. The decision should always be made with the physician overseeing follow-up.

Significantly, especially tasks that require sustained attention, organization, and working memory. The school can adapt: seat close to the teacher, short clear instructions, tasks broken into smaller steps, extra time on tests, visual organizers, reminder system. The medical report allows formal educational accommodations. The family-school-physician partnership is essential.

Yes. In adults, motor hyperactivity generally decreases, shifting into inner restlessness, impatience, and difficulty with sedentary work. Inattention persists — trouble completing projects, procrastination, forgetting appointments. Emotional dysregulation becomes more evident. Many adults with ADHD develop compensatory strategies but suffer from the extra effort it takes to stay organized.

Yes, very often. About 30-40% of children with ADHD have comorbid anxiety. This complicates diagnosis and treatment, because stimulants may worsen anxiety. Careful assessment determines which condition is primary or whether both coexist. In these cases, medical acupuncture may serve as an adjuvant for the comorbid anxiety, always integrated into the psychiatrist's plan — not as a substitute for psychotherapy or pharmacotherapy when indicated.

Use language appropriate to the age. For children: "Your brain works differently — it needs more stimulation to pay attention, like a sports car that needs special fuel." Emphasize that ADHD is not laziness or stupidity. Highlight strengths — creativity, energy, hyperfocus. Many successful people have ADHD. The diagnosis is a map, not a sentence — it helps to understand difficulties and find strategies that work.