Attention-Deficit/Hyperactivity Disorder (ADHD)
ADHD is a heterogeneous neurodevelopmental disorder with multifactorial etiology. These are big and fancy words, but they simply highlight that ADHD is a brain‑based difference, that it can present differently from person to person, and that it has many possible causes. Although ADHD is a neurodevelopmental disorder, it is also a natural variation in how the brain works, not a flaw or a failure.
People with ADHD often think, feel, and experience the world in ways that are creative, energetic, and deeply passionate. Their brains are often wired for curiosity, big ideas, and fast‑paced thinking. While they may face challenges with inattention, organization, or impulse control, these challenges are just one part of a much bigger and more beautiful picture. With understanding and support, children and adults with ADHD can build on their strengths, develop tools, and thrive in their own unique ways.
What ADHD means?
By definition, ADHD is characterized by difficulties with inattention, hyperactivity, impulsivity, and/or executive functioning. ADHD has nothing to do with intelligence, as individuals with ADHD can be very bright. Instead, it has more to do with execution, meaning that even when someone has strong ideas or clear goals, they may struggle to carry out plans or follow through.
ADHD symptoms must always be considered within context, including developmental expectations and functional impact. For example, a six‑year‑old child’s ability to sit still, pay attention, and wait their turn is very different from that of a 12‑year‑old. This developmental continuum must be carefully considered when evaluating the possibility of ADHD.
To be diagnosed with ADHD, an individual’s behavioral characteristics must be noticeably different from those of same‑age peers. These behaviors must be excessive, occur across multiple settings, and have an adverse effect on the individual’s ability to function in daily life.
ADHD and the brain
There are differences in brain structure, connectivity, and function between individuals with ADHD and those without ADHD. At this time, it is still unclear which specific brain regions are responsible, and more research is needed.
Current evidence suggests that multiple brain regions may be involved, which may help explain why ADHD has different subtypes and why it presents so differently from one person to another. Areas that have been studied include the prefrontal cortex, amygdala, basal ganglia, and cerebellum, as well as systems related to dopamine pathways, fronto‑striatal circuits, and the default mode network.
What is the trajectory of ADHD?
The first signs of ADHD are often related to high levels of motor activity that appear during toddlerhood and early childhood. At this stage, it can be difficult to tell the difference between early ADHD symptoms and age‑typical behavior, since young children naturally have lots of energy and limited self‑control.
For many children, clinically significant symptoms become more noticeable during the transition to formal schooling in early elementary years. This is often when executive functioning demands increase, such as sitting for longer periods, following classroom rules, and completing more challenging academic work. The median age of ADHD diagnosis is seven years old, according to the American Academy of Pediatrics, which closely aligns with the start of formal schooling and is likely not a coincidence.
Children with milder ADHD may not show significant difficulties until later, particularly during the transition to middle school. At this stage, executive functioning demands increase again as students manage multiple classes, teachers, assignments, tests, and personal belongings. These added demands can make ADHD symptoms more noticeable.
In many individuals, symptoms of hyperactivity tend to lessen over time. However, difficulties with attention, restlessness, impulsivity, and higher‑level thinking skills, such as planning and self‑monitoring, often continue. Because ADHD is a neurodevelopmental disorder, symptoms must be present before the age of 12 to meet diagnostic criteria, even if they become more noticeable later.
More than 75% of children with ADHD continue to experience significant symptoms into adulthood, according to CHADD. At the same time, about 25% of individuals develop effective strategies over time and no longer meet criteria for the disorder in adulthood. Adolescents and adults can learn ways to manage their symptoms and reduce how much ADHD interferes with daily life.
In some cases, individuals are even able to channel aspects of ADHD into positive outcomes. For example, a child with ADHD may grow into an innovative entrepreneur, using their high energy, creativity, and unique way of thinking to their advantage.
How many people have ADHD?
According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM‑5), approximately 5% of children experience ADHD symptoms. That translates to close to three million children in the United States alone. Estimates vary, however. The Centers for Disease Control and Prevention (CDC) reports that about 9.8% of children ages 3 to 17 have been diagnosed with ADHD.
The DSM‑5 indicates that ADHD affects boys at about twice the rate of girls, although research suggests that ADHD in girls may be underrecognized or missed altogether.
Research also shows that ADHD symptoms often persist beyond childhood. Information from CHADD indicates that more than 75% of children with ADHD continue to experience symptoms into adolescence and adulthood. According to the DSM‑5, approximately 2.5% of adults experience clinically significant symptoms of ADHD.
What causes ADHD?
There is growing evidence from family, twin, and adoption studies indicating that the primary cause of ADHD is genetic. Twin study meta‑analyses estimate heritability at approximately 77–80% (Faraone & Larsson, 2019). However, there are also many additional risk factors and variables to consider. ADHD has a multifactorial etiology, meaning that both genetic and environmental factors play a role in its development.
Certain experiences are associated with an increased risk of ADHD, including prenatal and birth trauma, premature birth, low birth weight, early childhood trauma, substance use during pregnancy, exposure to neurotoxins such as lead, and infections. Many of these environmental factors have been correlated with ADHD, but it is not yet clear whether these relationships are causal. It is also unclear whether some individuals are genetically predisposed to ADHD and whether these environmental factors further increase that risk.
It is also critical to rule out other possible causes of ADHD‑like symptoms, including sleep difficulties, vision or hearing impairments, nutritional deficiencies, and mental health challenges.
Kinds of ADHD
Attention‑deficit/hyperactivity disorder (ADHD) is the general term used to describe the condition. There are three recognized presentations:
- Predominantly inattentive presentation (previously known as ADD.)
- Predominantly hyperactive/impulsive presentation.
- Combined presentation.
The DSM‑5 outlines nine symptoms of inattention and nine symptoms of hyperactivity and impulsivity. To meet clinical criteria, children up to age 16 must show six symptoms of inattention and/or six symptoms of hyperactivity and impulsivity. For adolescents and adults age 17 or older, five symptoms of inattention and/or five symptoms of hyperactivity and impulsivity are required.
Several of these symptoms must occur in two or more settings, such as home, school, or work, and they must be present before the age of 12. Requiring symptoms across multiple settings helps ensure that the behaviors are not better explained by situational or environmental factors that may only be present in one place.
ADHD symptoms may be less noticeable when an individual is receiving rewards, under close supervision, in a novel setting, or engaged in highly interesting activities. Symptoms may also appear minimal in one‑to‑one environments or when there is consistent external stimulation, such as screens.
The following symptoms are copied from the DSM-5
Symptoms of inattention
- Often fails to give close attention to details or makes careless mistakes in schoolwork, at work, or during other activities (e.g., overlooks or misses details, work is inaccurate).
- Often has difficulty sustaining attention in tasks or play activities (e.g., has difficulty remaining focused during lectures, conversations, or lengthy reading).
- Often does not seem to listen when spoken to directly (e.g., mind seems elsewhere, even in the absence of any obvious distraction).
- Often does not follow through on instructions and fails to finish schoolwork, chores, or duties in the workplace (e.g., starts tasks but quickly loses focus and is easily sidetracked).
- Often has difficulty organizing tasks and activities (e.g., difficulty managing sequential tasks, difficulty keeping materials and belongings in order, messy, disorganized work, has poor time management, fails to meet deadlines).
- Often avoids, dislikes, or is reluctant to engage in tasks that require sustained mental effort (e.g., schoolwork or homework, for older adolescents and adults, preparing reports, completing forms, reviewing lengthy papers).
- Often loses things necessary for tasks or activities (e.g., school materials, pencils, books, tools, wallets, keys, paperwork, eyeglasses, mobile telephone).
- Is often easily distracted by extraneous stimuli (e.g., for older adolescents and adults, may include unrelated thoughts).
- Is often forgetful in daily activities (e.g., doing chores, running errands, returning calls, paying bills, keeping appointments).
Symptoms of hyperactivity/impulsivity
- Often fidgets with or taps hands or feet or squirms in seat.
- Often leaves seat in situations when remaining seated is expected (e.g., leaves his or her place in the classroom, in the office or other workplace, during dinner).
- Often runs about or climbs in situations where it is inappropriate (note, in older adolescents and adults, may be limited to feeling restless).
- Often unable to play or engage in leisure activities quietly.
- Is often “on the go” acting as if “driven by a motor” (e.g., is unable to be or uncomfortable being still for extended time, as in restaurants, meetings).
- Often talks excessively.
- Often blurts out an answer before a question has been completed (e.g., completes people’s sentences, cannot wait for turn in conversation, blurts in class).
- Often has difficulty waiting his or her turn (e.g., while waiting in line).
- Often interrupts or intrudes on others (e.g., butts into conversations, games, or activities; may start using other people’s things without asking; for adults/adolescents, may intrude into or take over what others are doing).
How can I determine if my child has pediatric ADHD?
There is no single test—either physical or psychological—that can be used on its own to diagnose ADHD symptoms in children.
A comprehensive ADHD assessment is typically needed to make an accurate diagnosis. Best‑practice evaluations often include multiple components; however, not every child requires a full comprehensive battery. When there are no co‑occurring concerns, such as learning or mental health challenges, ADHD can sometimes be diagnosed accurately in less intensive settings, including by pediatricians or integrated behavioral health (IBH) providers. A comprehensive ADHD evaluation often includes:
- Clinical interview with the parent and child: This interview typically covers a detailed description of the child’s symptoms over time, developmental history, red flags or risk factors throughout development, family history, and consideration of differential diagnoses.
- Parent, teacher, and child rating scales: These may include both, broad measures, such as the BASC‑3 or CBCL, as well as more targeted rating scales, such as the SNAP, BRIEF‑2, or Conners‑4. These tools help with symptom counts and assist in differentiating ADHD from other conditions.
- Cognitive measures: This could include things such as intellectual functioning, language skills, and memory.
- Academic measures: Standardized measures of achievement are recommended (e.g., WIAT-4 or KTEA-3) to rule out learning disorders that may be presenting as ADHD-like symptoms as well as to assess real-life executive functioning skills that are embedded within academics, such as organizing, planning, and proofreading written work.
- Executive functioning: Direct assessments of executive functioning can be completed (e.g., D-KEFS, NEPSY-II, CPT-3, IVA-2).
- Behavioral observations: We should be considering school‑based observations, observations during clinic‑based testing, and parent observations across settings.
What pediatric ADHD treatment options are available?
Children and adolescents with ADHD have a variety of needs. Some children require specific accommodations in the school setting, some need support with social‑emotional functioning, and others need practical support. Medication has also been beneficial for many individuals.
In general, optimal pediatric ADHD treatment includes a combination of interventions that are individualized to meet a particular child’s needs. In other words, relying on only one treatment option is not recommended, as treatment approaches often work best when used together.
Commonly accepted treatment options include:
- Educational interventions and accommodations
- Use of medication
- Individual or family therapy
- Parenting skills training
- Social skills training
- Parent-child support groups
- Practical support
- ADHD coaching or executive functioning tutoring
Treatment options for children under 6
The AAP recommends parent training in behavior management as the first line of treatment, before medication is considered. This often involves behavioral therapy with a parent-coaching component.
Treatment options for children 6 and older
The AAP recommends a combined approach of medication and behavioral therapies. Specifically, they recommend FDA-approved medications alongside behavioral therapies like parent training in behavior management and classroom interventions.
Research has demonstrated how there are positive effects from just medication management, and there are positive effects from just behavioral strategies, but the biggest effect is going to be a combination of both of them (CITE). Of course, if one of these avenues does not align with family values, parents can determine the best course of action for their child and family.
Your child at school
The classroom teacher plays an important role in a child’s successful adjustment. The following suggestions may be helpful in planning your child’s educational program. In addition, children with ADHD may qualify for formal services and/or accommodations with an IEP or a 504-accommodation plan.
A 504-accommodation plan will focus on making the general education classroom more accessible (e.g., extended time, taking tests in quiet environments), whereas an IEP will provide an individualized plan, with any needed specialized services and accommodations.
The following strategies may by applied in classrooms to help your child with ADHD:
Modify the physical environment
- Have this child sit in front of the room, away from the door, activity centers, and attractive bulletin boards.
- Give this child the option of a “private office” or study carrel for independent work. This child may need additional monitoring and support when working in groups.
- Provide structure, predictability, and consistency. Simplify classroom routines and transitions when possible.
- Stand near this child when presenting information or giving directions, and monitor his/her response. A gentle hand on a shoulder or ensuring you are in their visual field can help.
- Model strategies for organizing time, space and materials in the classroom.
- Have motor and sensory breaks embedded within their routine and an option as needed.
- Do not make recess or specialist activities (physical education, art, music) contingent on classroom performance.
Modify instructional techniques
- Be sure this child’s attention is focused when giving instructions or directions. Cue this child to prepare to attend with a pre-determined signal.
- Give directions slowly using simple sentences and vocabulary. When needed, ask this child to repeat them in his/her own words.
- Provide “advance organizers” (such as vocabulary lists, outlines of main ideas, or explanations of key concepts) to be covered in class.
- Include visual cues, manipulative materials and active student participation in each lesson. For example, a child could have a visual list of their schedule or behavioral expectations. They could have a visual list of steps in a task. The child could have a picture of a cartoon raising their hand on their desk to remind them not to blurt.
- Reward thoughtful, “think aloud” approaches rather than speed of responding.
- Provide this child with opportunity to prepare for discussions. Give this child information on the content to be covered so he/she has a frame of reference.
Modify materials, assignments and testing procedures
- Reduce visual clutter (e.g. cute pictures, etc.) on worksheets. Reduce number of problems on page. Use enlarged type and allow additional space between sentences or problems.
- Highlight key words in directions and central features on a page. Make sure rubrics outline specific expectations and how points will be earned. Divide work pages into sections with specific time expectations for each section.
- Shorten assignments but stress and reinforce accuracy. Decreasing workload to fit this child’s attention span will encourage work completion and a sense of closure.
- Break long assignments into daily tasks, and structure with concrete examples. Provide a sample of the finished product.
- Provide self-correcting materials and computer-assisted instruction for immediate feedback.
- Modify assignments consistently in both classroom work and in homework. Sending incomplete classroom work home often proves to be counter-productive for most children. When possible, homework should be at a level where this child is able to complete it independently.
- Provide extra copies of textbooks to be kept at home. For each class, arrange a “study buddy” for this child to call with homework questions.
- Avoid long tests. Provide frequent short quizzes and opportunity for retest, or for discussion to demonstrate mastery. This will be especially important when test scores are not consistent with daily assignments and classroom performance.
- Provide alternate environments with fewer distractions for test taking.
- Allow tests to be taken in an untimed condition.
Teach organizational strategies
- Provide daily practice in use of such things as desk organizers, work folders, an assignment book and a planning calendar. Daily check-ins with teachers or a counselor often ensure that assignments have been recorded accurately and thoroughly.
- Provide study guides for upcoming tests, or provide practice tests prior to unit tests.
- Develop a system for keeping track of completed/uncompleted work. Provide detailed checklists to allow self-monitoring of satisfactory completion.
Guide this child in taking responsibility for their own behavior
- Include social skills and problem-solving training as part of the regular classroom curriculum.
- Define and reinforce specific positive behaviors and productivity. Conduct a reinforcement survey with this child to identify reinforcement preferences.
- Encourage this child to develop and use self-monitoring procedures (e.g. reminding his/her to check work for accuracy once it is completed).
- Develop contingency contracts for specific behavioral goals with specific reinforcement included (e.g. this child will earn 20 extra minutes of computer time when 4 out of 5 math assignments are turned in with 90 percent accuracy).
- Work closely with parents to maintain consistency regarding behavioral goals, homework expectations and reward systems.
Your adolescent at school
Many adolescents with ADHD continue to need support with homework monitoring and organization. As teens work toward greater independence, building a strong support system within the school setting is an important step. A coach or mentor can help by directly teaching study skills and organizational strategies and providing ongoing support as these skills are practiced and used.
A school counselor can also play an important role by serving as an advocate with teachers and offering positive support when navigating or resolving conflicts. In addition, some families find that working with a private ADHD or executive functioning coach outside of school can be helpful in supporting organization, planning, and follow‑through.
Strategies for your adolescents in school
These strategies and direct suggestions may help your adolescent take more responsibility for their own learning:
- Take an active part in setting realistic goals for increasing your work completion and improving your grades.
- Use an assignment book and a planning calendar to keep track of assignments due and break long assignments into daily tasks.
- Use study guides and teacher outlines to prepare for tests.
- Develop checklists for keeping track of assignments that have been completed and turned in.
- Block out daily study time with specific tasks to be completed.
- If possible, obtain extra copies of textbooks to be kept at home. Get the telephone number of e-mail address of a friend in each class in case you have questions about assignments.
- Request a distraction-free room and extended time for taking major tests, final exams, and college entrance exams.
- Choose a place in the classroom that does not interfere with your paying attention to the teacher. Save socializing for break time.
- Arrange a check-in time with your advisor to organize each day and check for assignment completion.
Citations
- American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Arlington, VA: Author.. For in-text citations, use: (American Psychiatric Association, 2013).
- Faraone, S.V., Larsson, H. Genetics of attention deficit hyperactivity disorder. Mol Psychiatry 24, 562–575 (2019). https://doi.org/10.1038/s41380-018-0070-0
Resources on ADHD
Whether you’re looking for educational tools, community programs, or crisis support, these resources are here to help families navigate challenges with confidence.
