Attention Deficit Hyperactivity Disorder (ADHD)
ADHD can affect attention, activity level, and impulse control from childhood into adulthood. Understand the symptoms, how an assessment works, and what medication, therapy, and practical support can offer.
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What Is ADHD?
Attention-deficit/hyperactivity disorder (ADHD) is a developmental condition that can affect attention, activity level, and impulse control. Its symptoms begin in childhood, although some people are first diagnosed as adults. An evaluation looks at a lasting pattern and its effects on daily life, rather than a few distracted days.[1][2]
You might be looking for help because assignments keep going unfinished, work deadlines slip despite your effort, or your child struggles to follow classroom routines. Those difficulties deserve attention. ADHD is one possible explanation, and a clinician can also check for sleep problems, anxiety, learning difficulties, and other conditions that need different or additional care.[3][2]
- ADHD can involve inattention, hyperactivity and impulsivity, or both. You do not have to be visibly hyperactive to have ADHD.[1]
- A screening questionnaire cannot diagnose ADHD by itself. Assessment considers childhood history, symptoms in more than one setting, and their effect on functioning.[2][3]
- Treatment depends on age and individual needs. Options include medication, behavioral treatment, parent training, and school or workplace support.[4][1]
- ADHD and substance use problems can occur together. Tell an evaluating clinician about alcohol, drugs, and prescription medicines so the assessment and treatment plan account for them.[5][6]
What ADHD Means
ADHD is a neurodevelopmental disorder, meaning it concerns how the brain develops and functions. People with ADHD may have difficulty sustaining attention, organizing tasks, managing activity, or pausing before acting. The difficulties are persistent, make everyday activities harder, and go beyond what would be expected for the person’s age.[1]
Some of these challenges involve executive functions, the mental skills used to plan, organize, keep track of information, and manage tasks. Executive function describes a group of abilities, rather than a single part of the brain. Trouble with these abilities can help explain why knowing what to do does not always lead to getting it done.[7][2]
ADHD and the Older Term ADD
ADD, short for attention deficit disorder, is an older term. The current name is ADHD. It includes people whose main difficulty is paying attention, even if they are not noticeably restless or hyperactive.[8][1]
Treatment can reduce symptoms and improve daily functioning. Some people need support through adolescence and adulthood, and their needs can change as school, work, and family responsibilities change.[1][2]
The Three ADHD Symptom Patterns
A diagnosis may use the word presentation. This means the pattern of symptoms a person currently has. That pattern can change over time, so a clinician will ask about the difficulties you are having now, as well as your history.[1]
- Mostly attention-related difficulties (predominantly inattentive). Difficulties may include overlooking details, losing necessary items, becoming distracted, and struggling to organize or finish tasks.[1]
- Mostly restlessness and acting before thinking (predominantly hyperactive-impulsive). Difficulties may include fidgeting, leaving a seat when remaining seated is expected, excessive talking, interrupting, and trouble waiting.[1]
- Both patterns together (combined presentation). The person has enough symptoms from both groups to meet the diagnostic requirements. The number does not have to be exactly the same in each group.[1]
ADHD Symptoms in Children and Adults
Many people occasionally forget things, lose focus, or feel restless. With ADHD, the pattern lasts, occurs across situations, and creates meaningful difficulties. Concrete examples can help you describe a concern, but they are not a self-diagnosis checklist.[1][3]
Inattention
Inattention can affect both starting a task and keeping track of it. A child may miss instructions or leave schoolwork unfinished. An adult may repeatedly lose necessary items, overlook appointment details, or struggle to organize competing responsibilities.[1][2]
Examples clinicians ask about include:[1]
- Frequently missing details or making avoidable mistakes.
- Difficulty sustaining attention during work, conversations, or activities.
- Appearing not to listen when spoken to directly.
- Starting tasks but having trouble following through.
- Difficulty organizing tasks, materials, or time.
- Avoiding or disliking tasks that require sustained mental effort.
- Losing items needed for activities.
- Being easily distracted.
- Forgetting everyday responsibilities.
Hyperactivity and Impulsivity
Hyperactivity may be conspicuous in a young child who climbs or runs when it is inappropriate. In an adult, it may feel more like persistent restlessness. Impulsivity can appear in conversations, turn-taking, and decisions made before considering their consequences.[1][2]
Examples clinicians consider include:[1]
- Fidgeting, tapping, or squirming.
- Leaving a seat when staying seated is expected.
- Running or climbing in inappropriate situations, or feeling restless at an older age.
- Difficulty taking part in activities quietly.
- Acting as though constantly on the go.
- Talking excessively.
- Answering before a question has finished.
- Difficulty waiting for a turn.
- Interrupting or intruding on other people’s activities.
Why ADHD May Be Recognized Later
Some adults had symptoms in childhood that were overlooked or managed with help from family and school. Greater demands later in life can make those difficulties more apparent. Being diagnosed as an adult does not, by itself, mean the condition began in adulthood.[2]
Explain what it takes to keep up, as well as what goes wrong. For example, you might describe the reminders you rely on, the tasks you repeatedly postpone, and the consequences when your usual support is unavailable. These are useful discussion points for an evaluation, rather than proof of ADHD.[2]
How ADHD Is Diagnosed
In Yale Medicine’s ADHD guide, child psychiatrist Ayotunde Ayobello, MD, explains: “ADHD is not diagnosed with a single test.” The evaluation brings together symptoms, history, functioning, and information from relevant settings.[7]
A clinician may use interviews, questionnaires, and information from family members, teachers, or other people who know you well. A medical assessment can help identify other explanations for the difficulties. For children, hearing and vision checks may also be part of that process.[3][2]
What the Assessment Needs to Establish
Diagnostic requirements include more than a symptom score. A qualified clinician evaluates whether:[1][2]
- Enough symptoms are present. Children through age 16 need at least six symptoms from either the attention group or the hyperactivity and impulsivity group. People age 17 and older need at least five. For combined ADHD, the person must meet that number in each group.
- The pattern has lasted at least six months and goes beyond what would be expected for the person’s age.
- Several symptoms were present before age 12.
- Symptoms occur in at least two settings, such as home and school, or work and relationships.
- Symptoms make daily life harder, such as causing problems at school, at work, or in relationships.
- Another condition does not better explain the symptoms.
Conditions such as anxiety, depression, sleep disorders, and learning difficulties can cause overlapping problems. They can also occur alongside ADHD. An evaluation should consider both possibilities.[3][2]
What to Bring to an ADHD Appointment
Describe the Difficulty
You can ask for help understanding a pattern without deciding what diagnosis explains it.
Prepare a few concrete examples from different parts of your life. Include when the pattern started, how often it happens, and what it affects. If available, bring school reports, prior assessments, and observations from someone who knew you in childhood. Also list medications, sleep concerns, and alcohol or drug use.[2]
The following is an example you can adapt. It is an appointment note, not a diagnostic tool:
“I want help understanding a pattern of unfinished tasks. At work, I lose track of multistep assignments. At home, I forget bills even when I have set money aside. This happened in school, too. Reminders help, but I still miss important steps. I would like an assessment of ADHD and other possible explanations.”
If you do not have childhood records, tell the clinician what is available and ask how they assess early symptoms. You do not need to resolve the diagnosis yourself before arranging an appointment.
What Causes ADHD
Researchers have not identified a single cause of ADHD. Genes are important, and ADHD often runs in families. Researchers also study differences in brain development and environmental factors that may contribute to risk. A family history is relevant to an assessment, but it does not diagnose any individual family member.[9][1][7]
Dopamine and norepinephrine are brain chemicals involved in attention and other functions. ADHD medicines can affect these systems, but describing every person with ADHD as simply having “too little dopamine” goes beyond what an individual evaluation establishes. A clinician diagnoses ADHD by reviewing symptoms, history, and daily difficulties. A dopamine measurement does not establish the diagnosis.[1][7]
Researchers study possible risk factors including lead exposure, alcohol or tobacco exposure during pregnancy, and head injuries. These associations do not identify one event as the cause of a particular person’s ADHD. Discuss relevant medical and developmental history without treating it as proof or assigning blame.[10]
How Common ADHD Is
U.S. estimates depend on the age group, survey year, and whether researchers count an earlier diagnosis or a current condition. These measures answer different questions and should not be treated as interchangeable.[11][12]
- Children. CDC reports that about 7 million children ages 3–17, or 11.7%, had current ADHD according to parent reports in the 2024 National Survey of Children’s Health.[11]
- Adults. A 2023 national survey estimated that 15.5 million U.S. adults, or 6.0%, reported a current ADHD diagnosis.[12] About 56% of those adults said they were first diagnosed in adulthood.[12]
The adult estimate comes from a survey of 7,046 adults.[12] Researchers adjusted the results to better reflect the U.S. adult population. However, participation was low, and people reported their own diagnoses. Researchers did not give everyone a new ADHD assessment. Those limitations matter when interpreting the estimate.[12]
CDC’s 2022–2023 child estimates also show a difference by sex: about 13% of boys and 7% of girls had been diagnosed with ADHD.[11] A lower diagnosed rate does not mean a girl’s attention or organizational difficulties should be dismissed.[11]
ADHD and Other Mental Health Conditions
ADHD often occurs alongside other conditions that affect treatment planning. Among U.S. children with current ADHD in 2022, CDC reports that nearly 78% had at least one other co-occurring condition.[11] Anxiety, behavior problems, and learning or developmental difficulties were among the conditions reported.[11]
Almost half had behavior or conduct problems, and about 4 in 10 had anxiety.[11] If a child has serious behavior problems as well as attention difficulties, ask whether they need assessment for another condition, such as conduct disorder. Describe the behavior and its effect on daily life so each concern can be considered.[11][1]
Adults may also have overlapping mood, anxiety, or substance use disorders. Identifying these concerns matters because treating one diagnosis does not automatically address every difficulty a person experiences.[2][13]
What an Older Adult Study Found About Depression
In a 2006 report from a U.S. survey of adults ages 18–44, depression was more common among people who also had ADHD. Researchers estimated that 18.6% of adults with ADHD had experienced major depression during the previous year, compared with 7.8% of adults without ADHD.[13]
Not everyone in the survey had a full ADHD diagnostic interview. Researchers used information from a smaller interview group to estimate diagnoses across the larger survey. The findings show that ADHD and depression often occurred together in that older study. They do not show that ADHD caused depression or tell us how common the combination is today.[13]
ADHD and Substance Use Disorders
Long-term studies have linked childhood ADHD with a higher likelihood of later substance use disorders. That association is a reason to discuss substance use during care. It does not mean that everyone with ADHD will develop addiction.[5]
A 2011 research review combined 27 studies that followed children over time. Children with ADHD were more likely than children without ADHD to later have disorders involving alcohol, nicotine, or marijuana.[5]
For marijuana-related disorders, the link became weaker when researchers left out one study with an unusually large effect on the combined result. This is one reason a research estimate should not be treated as a forecast for you or your child.[5]
Most children in these older studies were boys, and many were White. Some also had behavior problems that could affect the results. The studies do not tell us that ADHD alone caused later substance problems or that a particular treatment would prevent them.[5]
Researchers have also asked how often people receiving care for substance use problems have ADHD. A 2023 review of 31 studies estimated ADHD in 21% of patients with substance use disorders.[14] The studies included adults and adolescents from several countries, and their results varied widely. That percentage does not tell us how common ADHD is in every U.S. treatment program.[14]
Let the clinician know about alcohol, marijuana, cocaine, or medication use that concerns you. When ADHD and a substance use disorder occur together, ask how the clinicians involved will coordinate assessment, treatment, and medication monitoring.[2][6]
ADHD Treatment Across Different Ages
An ADHD treatment plan should address symptoms and the activities those symptoms disrupt. Medication, therapy, family support, and educational accommodations have different roles. A plan should be reviewed as needs change.[4][1]
| Age Group | Care Commonly Considered | Questions for the Clinician |
|---|---|---|
| Children under 6 | Parent training in behavior management is recommended first, before medication is tried.[4] | Where can we find an appropriate parent-training program? How will we and the preschool use the same strategies? |
| Children age 6 and older | Medication together with behavior therapy, including parent training and classroom behavior plans. School support is part of treatment.[4] | What changes will we monitor at home and school? Who will communicate with the teacher? |
| Adolescents | Age-appropriate medication and behavioral support, with the adolescent involved in decisions and daily routines.[4][1] | How will the plan fit school and growing independence? What support is needed to take and store medication safely? |
| Adults | Medication, psychotherapy such as cognitive behavioral therapy, and practical support for organization, work, and relationships.[2] | Which difficulties will therapy address? If I need medication care too, how will it be coordinated? |
What Behavioral Therapy and CBT Can Help With
Choose a Concrete Goal
Name something you want to be able to do more reliably. That gives you and your therapist a useful starting point.
Behavioral treatment works on specific actions and routines. For parents, training may focus on clear expectations, consistent responses, and reinforcing useful behaviors. For adults, treatment may include organizing tasks, managing time, and building routines that are easier to follow.[4][1]
Cognitive behavioral therapy (CBT) can help a person recognize patterns that interfere with everyday tasks and practice more effective responses. It may also address anxiety or depression that occurs alongside ADHD. Ask a therapist how their approach will address the difficulties you want to change.[1][2]
For example, a useful therapy goal might be “submit the weekly report on time” rather than “be more organized.” You and the therapist can identify where the task breaks down, choose a manageable change, and review whether it helped. This is an example of a practical goal, rather than a promised treatment outcome.
School and Family Support
Children may benefit from classroom behavior plans and accommodations such as changes to seating, assignments, or test time. Depending on eligibility, support may be provided through a 504 plan or an Individualized Education Program (IEP). Ask the school how to request an evaluation and coordinate with your child’s health care team.[1]
At home, predictable routines, brief instructions, manageable steps, and consistent feedback can support the treatment plan. These strategies should fit the child’s age and needs. Parent training offers a way to practice them with professional guidance.[4]
ADHD Medication and Safety
ADHD medicines fall into two main groups: stimulants and nonstimulants. Both can help with symptoms, but they work differently. The choice depends on age, side effects, other health conditions, and the risk of taking a medicine in an unsafe way. Follow-up appointments help the prescriber check whether a medicine is helping and whether changes are needed.[1][15]
Stimulant Medicines
Common stimulant medicines include methylphenidate products such as Ritalin and Concerta, and amphetamine products such as Adderall. They can reduce ADHD symptoms, but they also carry risks. A prescriber should discuss benefits, side effects, other medicines, and the monitoring needed.[6][1]
The FDA warns that prescription stimulants can be misused and carry risks of addiction, overdose, and death. Take them only as prescribed, never share them, and store them securely. Taking someone else’s medication or changing your dose without medical guidance is not a safe way to test whether you have ADHD.[6]
Tell your prescriber about side effects, concerns about your use, or pressure to share medication. Seek emergency care or call 911 for symptoms of a possible stimulant overdose, such as a seizure, severe confusion, or a fast or irregular heartbeat after taking a stimulant.[6]
Nonstimulants and Off-Label Options
FDA-approved nonstimulant ADHD medicines include atomoxetine, guanfacine, clonidine, and viloxazine. The approved age range depends on the specific medicine and product. Ask the prescriber which product is appropriate for the person being treated and how long to allow before assessing its response.[15][4]
Some antidepressants are also prescribed off-label for ADHD, meaning that the FDA has not approved that use. Bupropion, known by brand names including Wellbutrin, is one example. It is not interchangeable with an approved ADHD nonstimulant, and its risks and suitability require a separate discussion.[1][16]
Bupropion can cause anxiety or agitation and has important precautions involving seizures, eating disorders, and abrupt withdrawal from alcohol or certain medicines. Do not assume it will treat anxiety simply because it is an antidepressant.[16]
Finding ADHD Care Near You or Online
Check What Is Included
Ask about the service you need before committing to an appointment or subscription.
Start with the kind of help you need: an evaluation, therapy for daily difficulties, medication management, or coordinated care for more than one condition. A primary care clinician can be a starting point and can refer you to a qualified specialist. Ask whether the professional evaluates and treats ADHD in your age group.[2][3]
Before booking an ADHD therapist near you or an online appointment, ask:
- Evaluation. Do you diagnose ADHD, provide therapy after a diagnosis, or both? What information does the assessment include?
- Relevant experience. Do you work with adults, children, or families like mine? How do you assess overlapping concerns?
- Treatment. What specific skills or difficulties would we work on, and how would we review progress?
- Medication care. If I need a prescriber, who provides that service and how do you coordinate?
- Practical access. Are you licensed to provide care where I will attend? What are the costs, insurance arrangements, waiting times, and follow-up options?
Telehealth can provide access to ADHD care, but an online appointment does not guarantee a diagnosis or prescription. In their 2024 journal commentary, psychiatrists Gregory Mattingly and Ann Childress emphasize the need for “thorough diagnostic evaluation and follow-up.” Those expectations apply when comparing online services as well as local practices.[17][18]
A service offering general counseling may not provide a full ADHD assessment or medication management. Ask directly what is included before paying. If more than one professional is involved, clarify who will follow up on symptoms, prescriptions, and other mental health concerns.[2]
Getting Help for ADHD Concerns
You can start by writing down the two or three difficulties that most affect your day and arranging an assessment. You do not need to arrive with a confirmed diagnosis. The aim is to understand the pattern and agree on care that addresses it.[2]
If anxiety, depression, or other mental health concerns are part of the picture, include them in that conversation. You can also explore treatment and support options, checking with any service about its ADHD expertise and the care it actually provides.
If you are struggling emotionally or thinking about suicide, call or text 988 in the U.S. For immediate danger or a life-threatening emergency, call 911.[1]
Frequently Asked Questions About ADHD
How Do I Know Whether I Have ADHD?
Look for a lasting pattern that affects everyday functioning, then seek an assessment. A clinician considers symptoms over at least six months, childhood history, more than one setting, and other possible explanations. An online questionnaire can identify concerns to discuss, but cannot establish the diagnosis by itself.[2][3]
Can Adults Be Diagnosed With ADHD?
Yes. Some people are first diagnosed in adulthood even though symptoms were present in childhood. An adult evaluation includes current difficulties and early history. Bring relevant records if available and ask what other information the clinician can use.[2]
Is ADD Different From ADHD?
Can Therapy Help With ADHD?
Yes. Therapy can help people practice ways to organize tasks, finish activities, and handle everyday difficulties. The approach should fit the person’s age. For children under six, experts recommend teaching parents behavior-management strategies before trying medication. Adults may use medication and therapy together.[4][2]
Can I Get ADHD Care Online?
Some ADHD assessment and treatment services are delivered through telehealth. Before paying, ask whether the service provides diagnosis, therapy, medication management, or a combination. Check clinician qualifications, follow-up, costs, and whether care is available where you are located. An online appointment is not a promise of a particular diagnosis or prescription.[17][18]
Does ADHD Mean I Will Develop an Addiction?
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