ADHD in adults looks different than you might expect

Understanding what’s actually contributing to our difficulties is the first step to receiving care that fits.

ADHD is a neurodevelopmental condition that can affect focus, organization, impulse control, and activity level. In adults, it may look like trouble finishing tasks, losing track of time, feeling restless, acting impulsively, or struggling to follow through despite strong effort.

Because ADHD symptoms can overlap with anxiety, depression, sleep problems, and other conditions, a careful evaluation matters. Mentavi Health’s Diagnostic Evaluation helps clarify whether ADHD may be present, which symptoms are most prominent, and whether other factors may be contributing before treatment is recommended.

What you might
be noticing

ADHD in adults rarely looks like a single, obvious problem. It tends to show up in ways that feel personal or situational rather than clinical.
These patterns don’t mean you have ADHD. But if they’ve been present most of your life and are affecting your work, relationships, or daily functioning, a formal evaluation can help identify what’s behind these patterns.

Why a clear diagnosis
matters before treatment

Adult ADHD can look like trouble focusing, anxiety, low motivation, restlessness, disorganization, or a mix of several concerns. Sometimes ADHD is the main issue. Other times, conditions like anxiety, depression, sleep problems, or stress may be affecting how you feel.

Understanding what’s contributing to your difficulties can help guide the right next steps for care, rather than relying on symptoms alone.

An estimated 15.5 million U.S. adults have ADHD, and more than half were first diagnosed in adulthood.¹

1 Staley BS, et al. Attention-Deficit/Hyperactivity Disorder Diagnosis, Treatment, and Telehealth Use in Adults — National Center for Health Statistics Rapid Surveys System, United States, October–November 2023. MMWR Morb Mortal Wkly Rep. 2024;73(40):890–895.

Types of ADHD we evaluate and treat

ADHD can look different from person to person. The Mentavi Mental Health Diagnostic Evaluation helps identify which ADHD presentation may best fit your symptoms and whether other mental health conditions may also be contributing.
Predominantly inattentive presentation
This often involves difficulty sustaining focus, following through on tasks, staying organized, or keeping track of details and responsibilities. In adults, inattentive ADHD is sometimes missed because it may not involve obvious hyperactivity and may have gone unrecognized for years.
Predominantly hyperactive-impulsive presentation
This may involve restlessness, difficulty slowing down, impatience, interrupting, or acting before thinking. In adults, hyperactivity often looks less like “being unable to sit still” and more like inner restlessness, impulsivity, or difficulty with waiting and sustained tasks.
Combined presentation
This means both inattentive and hyperactive-impulsive symptoms are present. For many adults, combined ADHD can affect focus, organization, time management, relationships, and daily functioning.
Other specified or unspecified ADHD
Some people experience ADHD-related difficulties that do not fit neatly into one presentation. These diagnoses are clinically valid and can still help guide care. Your results will reflect the clinical reviewer’s findings and explain what any diagnosis may mean for you.

What causes ADHD

ADHD doesn’t have a single cause. Neurological and environmental factors can play a role, which is part of why the condition presents so differently from person to person. Family and twin studies also point to strong genetic contributions, with heritability estimates generally ranging from 70% to 80%, and having a parent or sibling with ADHD meaningfully increases the likelihood of a diagnosis.²

Neurologically, ADHD is associated with differences in brain networks involved in attention, executive function, and impulse control. Research points to brain circuits that use dopamine, along with the prefrontal cortex – the area that helps with planning, decisions and self-control. These findings reflect measurable differences in brain function and are not a matter of effort or willpower.²

Certain prenatal and early-life factors, including preterm birth and low birth weight, have been associated with an increased likelihood of ADHD, although no single environmental factor is sufficient to cause the condition on its own.²

ADHD is not caused by poor parenting or a lack of discipline. While excessive screen use may affect attention or sleep in some individuals, current evidence does not support screen time as a cause of ADHD.²

2 Faraone SV, Asherson P, Banaschewski T, et al. The World Federation of ADHD International Consensus Statement: 208 evidence-based conclusions about the disorder. Neuroscience & Biobehavioral Reviews. 2021;128:789–818. doi:10.1016/j.neubiorev.2021.01.022.

ADHD often comes with other conditions

ADHD is often the condition people recognize first, but it may not be the only thing affecting how someone feels or functions.

Many adults with ADHD also have other mental health conditions, such as anxiety or depression. These are called co-occurring conditions, meaning they can exist alongside ADHD. They are not simply “part of ADHD,” and they may need to be evaluated and treated separately.

If anxiety, depression, or another condition is also present, identifying it can help create a clearer picture and support better care decisions.

Research has found that about 47% of adults with ADHD also meet criteria for an anxiety disorder.3 Other research shows that childhood ADHD is associated with a higher risk of major depression in adulthood.4 The Mentavi Diagnostic Evaluation assesses a broad range of mental health conditions in a single clinician-reviewed process, so when more than one condition is present, they can be identified together.

3 Kessler RC, Adler L, Barkley R, et al. The prevalence and correlates of adult ADHD in the United States: Results from the National Comorbidity Survey Replication. American Journal of Psychiatry. 2006;163(4):716–723. doi:10.1176/ajp.2006.163.4.716. .
4 van der Plas NE, Noordermeer SDS, Oosterlaan J, Luman M. Systematic Review and Meta-Analysis: Predictors of Adult Psychiatric Outcomes of Childhood Attention-Deficit/Hyperactivity Disorder. Journal of the American Academy of Child & Adolescent Psychiatry. 2026;65(2):231–249. doi:10.1016/j.jaac.2025.04.012.
mentavi seal clean

Get clinical clarity

The Mentavi Mental Health Diagnostic Evaluation assesses ADHD and a broad range of common mental health conditions. It is clinically validated† for diagnosing ADHD in adults, with peer-reviewed research published in The Journal of Clinical Psychiatry.

A doctorate-level, licensed psychologist reviews your evaluation to determine warranted diagnoses, provide broader mental health context, and recommend next steps.

What happens when a psychologist
reviews your evaluation

Completing the evaluation is the first part. The second is the clinical review.

The evaluation you complete goes directly to a doctorate-level, licensed psychologist, a real clinician, not an automated score. They review your full clinical picture: your answers, symptom patterns, and any signs that more than one condition may be involved. Based on that review, the psychologist determines which diagnoses, if any, are warranted.

If more than one condition is present, that can be identified. If your symptoms do not meet criteria for ADHD, that clarity can be valuable too.

You will receive a clinical report with your results, any warranted diagnoses, and recommendations for next steps. If treatment is clinically appropriate, the report will outline available options based on your diagnosis and your state.

How it works

Purchase and complete the Mentavi Mental Health Diagnostic Evaluation online at your convenience. A doctorate-level, licensed psychologist reviews your evaluation and determines warranted diagnoses. You’ll receive a clinical report with your results, typically within five days, and next-step recommendations.‡

How ADHD is treated

The right treatment approach depends on your diagnosis, symptoms, whether other conditions are present, and your full clinical picture after evaluation. There is no single path that works for everyone.

With Mentavi, treatment options may include medical treatment, therapy, or both, depending on your diagnosis, preferences, clinical appropriateness, and what is available in your state. All treatment services are available to adults 18 and older and require a completed Diagnostic Evaluation. Availability varies by state and clinician capacity.

Medical Treatment

Medical treatment gives you the opportunity to work with a licensed clinician on a care plan based on your diagnosis, health history, and individual needs. When appropriate, this may include medication.

For ADHD, clinicians may consider stimulant or non-stimulant medications depending on your symptoms, medical history, and any co-occurring conditions. Some stimulant medications used to treat ADHD are Schedule II controlled substances. Your clinician will determine what, if anything, is appropriate for you.

Medical treatment is available in more than 40 states for patients 18 and older, subject to DEA and state telemedicine regulations.

Learn more about Medical Treatment

Therapy

Evidence-based therapy, including Cognitive Behavioral Therapy (CBT), is available in more than 40 states for patients 18 and older.

For adults with ADHD, therapy can help build practical strategies for focus, organization, time management, and follow-through, while also addressing co-occurring anxiety, depression, or other challenges when present.

Learn more about therapy services

Mental Wellness Coaching

Skills-focused coaching to help you build strategies, set goals, and manage anxiety day to day, available nationwide.§

Learn more about Mental Wellness Coaching

Check what's available in your state:

Can ADHD be evaluated and treated online?

At Mentavi Health, you can complete a comprehensive ADHD evaluation entirely online, on your own schedule, no office visit required. A doctorate-level, licensed psychologist reviews your results and may diagnose ADHD when clinically appropriate. The Diagnostic Evaluation is clinically validated† for the diagnosis of ADHD in adults, with peer-reviewed research published in The Journal of Clinical Psychiatry.

If treatment is warranted, medical treatment and therapy are available through Mentavi Health online. No commute, no waiting room, and no need to take time off work. Book around your schedule, meet with a clinician licensed in your state, and manage your care from home. Availability varies by state. Use the availability tool to check what’s offered in your state.

Frequently Asked Questions

How do I know if I have ADHD?

ADHD in adults typically involves a persistent pattern of inattention, hyperactivity, or impulsivity that affects daily functioning at work, in relationships, or day-to-day. If these patterns have been present since childhood and continue to interfere with your life, a formal evaluation can help identify what’s contributing to these patterns.

What’s the difference between ADHD and just being easily distracted?

Everyone gets distracted sometimes. ADHD involves a persistent, pervasive pattern that goes beyond typical lapses in focus, one that has been present across multiple areas of life for a long time, not just during stressful periods. A formal evaluation can help determine whether what you’re experiencing meets the clinical criteria for ADHD.

Do I have to take medication for ADHD?

No. Medication is one option, not a requirement. Your clinician will outline what’s available based on your results. You decide.

How long does the evaluation take?

The Diagnostic Evaluation typically takes 60 to 90 minutes. You can complete it all at once or at your own pace.

What if I have ADHD and anxiety or depression?

The Diagnostic Evaluation assesses a broad range of common mental health conditions, so if ADHD, anxiety, depression, or other conditions are present, they can all be identified in a single evaluation. Identifying co-occurring conditions at the same time means care decisions can account for the full clinical picture from the start.