ADHD or anxiety can both make it difficult to concentrate, stay organized, and feel settled.
Difficulty concentrating. Procrastination. Restlessness. Trouble sleeping. Feeling overwhelmed.
These experiences are commonly associated with ADHD—but they can also occur with anxiety.
That overlap is one reason people sometimes wonder whether they have attention-deficit/hyperactivity disorder (ADHD), an anxiety disorder, or both.
The distinction matters because treatment should address what is actually driving the symptoms rather than simply treating the symptom that is easiest to notice.
Why ADHD or anxiety can look so similar
Both ADHD and anxiety can interfere with attention and executive functioning.
Someone with ADHD may have difficulty staying focused because their attention is easily pulled toward competing thoughts, environmental distractions, or more stimulating activities.
Someone experiencing significant anxiety may also struggle to focus—but for a different reason. Their attention may repeatedly return to worries, perceived threats, uncertainty, or “what if” scenarios.
From the outside, both people may appear distracted.
Internally, however, their experiences can be quite different.
Consider this example
Two people are sitting at their computers trying to complete a report.
The first keeps opening unrelated browser tabs, remembers another task that needs to be completed, checks a message, starts reorganizing a document, and suddenly realizes an hour has passed.
The second remains on the report but repeatedly thinks:
“What if I make a mistake?”
“What if my supervisor doesn’t like this?”
“What if I missed something important?”
Both may say:
But the process interfering with concentration is different.
“I can’t concentrate.”
Clues that may point toward ADHD
ADHD is a neurodevelopmental condition that begins in childhood, although some people are not diagnosed until adulthood. The CDC notes that ADHD symptoms start in childhood and can continue into adulthood, and that diagnosis involves several steps rather than a single test.
Clinicians therefore look for longstanding patterns rather than simply asking whether someone is distracted now.
Possible ADHD patterns include:
- Chronic difficulty organizing tasks
- Frequently losing or misplacing important items
- Forgetfulness
- Difficulty estimating time
- Procrastination even with tasks that are not particularly stressful
- Starting projects but struggling to finish them
- Difficulty sustaining attention during routine or low-interest activities
- Impulsivity
- Restlessness
- Difficulty following multi-step directions
- Repeatedly missing deadlines despite intending not to
- Difficulty maintaining routines
- Similar difficulties occurring across more than one area of life
Adults sometimes compensate for these difficulties for years.
A person may perform well academically or professionally while relying heavily on:
- Last-minute pressure
- Excessive amounts of time
- Multiple alarms
- Detailed reminder systems
- Perfectionism
- Anxiety about forgetting something
- Help from a spouse, parent, coworker, or assistant
Success does not automatically rule out ADHD. Clinicians are interested in how much effort and compensation are required to maintain that success.
Clues that may point more toward anxiety
Anxiety-related concentration problems tend to be more closely connected to worry, fear, uncertainty, or physiological arousal.
A person may experience:
- Persistent or difficult-to-control worry
- Repeated anticipation of negative outcomes
- Fear of judgment
- Avoidance of situations that feel threatening
- Muscle tension
- Feeling keyed up or on edge
- Panic symptoms
- Reassurance seeking
- Difficulty sleeping because the mind will not “turn off”
- Concentration problems that become worse when anxiety increases
Someone with anxiety may know exactly what needs to be done but feel mentally consumed by the possibility of something going wrong.
Procrastination can occur in both
Procrastination is another area of overlap.
With ADHD, procrastination may occur because of difficulty with:
- Task initiation
- Time awareness
- Sustaining attention
- Prioritization
- Delayed rewards
- Breaking a large task into manageable steps
With anxiety, procrastination may be driven by:
- Fear of failure
- Perfectionism
- Fear of making the wrong decision
- Anticipated discomfort
- Worry about being judged
And sometimes both processes are happening at the same time.
What about restlessness?
Restlessness is also not unique to ADHD.
ADHD-related restlessness may feel like a persistent need for movement or stimulation. In adults, it may be less obvious than childhood hyperactivity and instead appear as:
- Constantly changing positions
- Fidgeting
- Difficulty tolerating long meetings
- Needing to stay busy
- Frequently multitasking
Anxiety-related restlessness often feels more closely tied to internal tension, apprehension, or the sense that something is wrong.
Again, these are clues—not diagnostic rules.
Can someone have both ADHD and anxiety?
Absolutely.
ADHD and anxiety commonly occur together.
In fact, untreated or poorly managed ADHD can sometimes contribute to anxiety over time.
Repeated experiences such as forgetting assignments, missing deadlines, losing important items, or feeling chronically behind can create genuine anxiety about making another mistake.
Conversely, severe anxiety can make existing ADHD symptoms harder to manage.
This is why treatment does not always involve choosing one diagnosis over another.
Sometimes both require attention.
Why a checklist alone is not enough
Online symptom checklists can be useful for identifying concerns worth discussing with a clinician, but they cannot establish the cause of those symptoms.
Difficulty concentrating can also occur with:
- Depression
- Trauma
- Chronic sleep deprivation
- Sleep apnea
- Substance use
- Medication effects
- Learning disorders
- Certain medical conditions
- Significant life stress
- Other psychiatric conditions
A thoughtful ADHD evaluation therefore looks at much more than attention alone.
What clinicians consider during an evaluation
A psychiatric evaluation may explore:
When the symptoms began
Because ADHD begins during childhood, clinicians look for evidence of symptoms earlier in life—even when the person was not formally diagnosed.
Where the symptoms occur
ADHD should produce meaningful impairment across more than one setting or area of functioning.
For example:
- Home
- School
- Work
- Relationships
- Daily responsibilities
What triggers the concentration problem
Is attention difficult primarily when the person is anxious?
Or are organization, time management, forgetfulness, and task completion chronically difficult even when anxiety is low?
Developmental and academic history
Report cards, teacher comments, childhood behavior, academic patterns, and family observations can sometimes provide useful context.
Sleep
Poor sleep can mimic or substantially worsen both ADHD and anxiety.
Other psychiatric symptoms
Clinicians consider depression, trauma, obsessive-compulsive symptoms, mood disorders, substance use, and other conditions.
Physical health
Relevant medical conditions and medications may also influence concentration, energy, and sleep.
Why getting the distinction right matters
Someone whose concentration difficulties are primarily driven by severe anxiety may require a very different treatment plan from someone whose difficulties stem predominantly from ADHD.
Treatment may involve some combination of:
- Education
- Psychotherapy
- Behavioral strategies
- Executive-function supports
- Sleep interventions
- Exercise and lifestyle changes
- Environmental modifications
- Treatment of anxiety
- ADHD medication when clinically appropriate
- Treatment of other contributing conditions
The goal is not simply to give the symptoms a label.
The goal is to understand the pattern well enough to choose treatment that actually helps.
A thoughtful evaluation can provide clarity
If you’ve spent years wondering:
“Why can I focus on some things but not others?”
“Why do simple tasks feel so difficult to start?”
“Am I distracted because I’m anxious—or anxious because I can’t keep up?”
those are reasonable questions to bring to a psychiatric evaluation.
At Lucid Psychiatry, ADHD evaluations consider attention and executive function within the larger context of mood, anxiety, sleep, physical health, developmental history, lifestyle, and everyday functioning.
Looking for ADHD evaluation or medication management?
Lucid Psychiatry provides online psychiatric evaluation and medication management for children ages 6+, adolescents, and adults throughout Florida and Washington.
Florida & Washington · 100% Telehealth · Ages 6+
Medical Disclaimer
This article is for general educational purposes and is not a substitute for an individualized medical or psychiatric evaluation. Symptoms described here can have many causes. Diagnosis and treatment recommendations should be made by an appropriately qualified healthcare professional.