Introduction to ADHD

Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental condition characterised by persistent and impairing difficulties with attention regulation and/or hyperactivity and impulsivity.

Many people with ADHD also experience difficulties with executive functioning, motivation, behavioural self-regulation and emotional regulation.

The brain does not manage these functions through one isolated area. Instead, multiple brain regions work together and communicate through interconnected brain networks. 

Executive functioning and self-regulation provide an important framework for understanding these difficulties, including challenges with managing time, organising tasks, sustaining motivation and regulating emotional responses.

Executive functions help us translate intentions into action. 

These abilities allow us to pause before responding, hold information in mind, plan ahead and sustain effort towards a goal. 

These executive functions support self-regulation: the ability to guide our behaviour in ways that serve longer-term goals. For someone with ADHD, knowing what needs to be done may not reliably lead to doing it at the required time (Barkley, 1997). (pubmed.ncbi.nlm.nih.gov⁠)

Executive functioning difficulties in adult ADHD can be understood primarily as difficulties with self-regulation and organising behaviour across time, 

rather than simply as problems with attention.

❑ Deficits in Executive Functioning is characterised by difficulty translating intentions and longer-term goals into consistently organised, goal-directed behaviour. 

❑ Performance appears strongly influenced by the immediate environment: 

urgency, novelty, interest, consequences and external accountability 

❑ Routine, repetitive, administratively demanding or delayed-reward tasks are associated with considerably greater difficulty. 

These include systems involved in:

❑ Attention
❑ Executive control
❑ Working memory
❑ Response inhibition
❑ Timing
❑ Motivation
❑ Reward processing
❑ Arousal
❑ Motor regulation
❑ Emotional regulation

 Dopamine is a chemical messenger that helps brain cells communicate. It supports attention, motivation, learning and the ability to keep working towards a goal.

Research suggests that differences in dopamine signalling contribute to ADHD. These differences may affect how the brain responds to rewards and manages attention and effort. However, the evidence does not support a simple explanation that everyone with ADHD has too little dopamine (MacDonald et al., 2024). (frontiersin.org⁠)

Together, dopamine and noradrenaline contribute to attention regulation, working memory, motivation, reward learning, behavioural inhibition, motor regulation and the prefrontal regulation of behaviour and emotion.

ADHD should therefore not be reduced to a simple “dopamine deficiency” or chemical imbalance. 

Its neurobiology reflects complex interactions among genetic influences, brain development, network functioning, environmental factors and the regulation of neurotransmitter systems.

Stimulant medications increase the availability of dopamine and noradrenaline, another chemical messenger. This can support attention and make behaviour easier to manage. 

Their effectiveness does not mean that ADHD is simply a chemical deficiency. (pmc.ncbi.nlm.nih.gov⁠, frontiersin.org⁠)

Executive functions help a person to:

❑ Manage time and accurately judge how long tasks will take.
❑ Plan ahead and prepare for future demands.
❑ Hold goals and intentions in mind while carrying out a task.
❑ Organise and sequence behaviour into the steps needed to achieve a goal.
❑ Inhibit immediate responses and pause before acting.
❑ Resist distractions and redirect attention back to what needs to be done.
❑ Generate and sustain motivation, particularly when a task is routine or provides little immediate reward.
❑ Regulate emotional responses, including frustration, impatience and emotional intensity.
❑ Persist with tasks until they are completed, even when they become repetitive or less interesting.

In ADHD, these abilities can be inconsistent or inefficient. 

This can create a gap between knowing what needs to be done and being able to reliably do it at the appropriate time. 

A person may fully understand a task, recognise its importance and genuinely intend to complete it, yet still experience significant difficulty initiating, organising, sustaining and completing the actions required.

These difficulties are often most apparent when tasks need to be independently managed over time, particularly when they are routine, repetitive, mentally effortful or associated with delayed rewards.

Adults with ADHD may therefore:

❑ Procrastinate or have difficulty getting started.
❑ Lose track of time or underestimate how long something will take.
❑ Forget intentions, appointments, responsibilities or future tasks.
❑ Become distracted or move between activities without completing them.
❑ Become overwhelmed by complex or multistep tasks.
❑ Struggle to maintain motivation once novelty or interest has faded.
❑ Depend on urgency or an approaching deadline to activate behaviour.
❑ Experience difficulty regulating immediate emotional or behavioural responses.
❑ Perform inconsistently, despite having the knowledge and ability required to complete the task.

Performance may improve considerably when the environment provides deadlines, external accountability, reminders, structure, immediate feedback or more immediate consequences.

These external supports reduce how much information, motivation and self-regulation the person must independently  maintain 

over time.

Self-regulation of emotions refers to the capacity to inhibit, modulate and recover from emotional responses in order to maintain behaviour consistent with long-term goals.

Individuals commonly experience emotions that are rapid in onset, intense in magnitude, and difficult to modify once activated.   

Emotional responses frequently occur before conscious reflection, making it challenging to pause, evaluate the situation objectively, and respond proportionately.

Clinically, this may present as heightened frustration, irritability, impatience, sensitivity to criticism, emotional overwhelm, rapid mood shifts, reduced tolerance for stress, and prolonged recovery following emotionally 

significant events. 

Emotional responses often interfere with problem solving, decision-making, communication, and interpersonal relationships.

The difficulty lies not in experiencing emotions, but in managing their intensity, duration, and behavioural expression. 

Impairment in this domain can significantly affect occupational functioning, intimate relationships, parenting, social interactions, and overall psychological wellbeing.

Video : Anxiety & ADHD: How they are related By Dr Barkley 

Perfectionism & ADHD & Anxiety By Dr Sharon Saline video 

ADHD & Social Anxiety By Dr Sharon Saline Video

Article: Females with ADHD: a lifespan approach in girls and women.

BMC Psychiatry (2020) 

Article: Annual Research Review: ADHD in girls & women

Stephen P. Hinshaw. Journal of Child Psychology and Psychiatry (2021)

Article: Adverse experiences of women with undiagnosed ADHD and the invaluable role of diagnosis.

Haimov-Kochman, R., & Berger, I. (2025). ADHD and sex hormones in females: A systematic review. Journal of Attention Disorders, 29(9), 706–723. https://doi.org/10.1177/10870547251332319

Morley, E., & Tyrrell, A. (2023). Exploring female students’ experiences of ADHD and its impact on social, academic, and psychological functioning. Journal of Attention Disorders, 27(10), 1129–1155. https://doi.org/10.1177/10870547231168432

Rejection sensitivity (often termed Rejection Sensitivity Dysphoria, RSD) is 

an pattern of intense emotional pain and rapid mood shifts triggered  by perceived or actual rejection, criticism, or failure. 

Test for Rejection Sensitivity

❑ Rejection sensitive dysphoria (RSD) is an intense vulnerability to the perception — not necessarily the reality — of being rejected, teased, or criticised by important people in your life.    

❑ The response is well beyond all proportion to the nature of the event that triggered it.

❑ Rejection sensitive dysphoria is not a formal diagnosis, but rather one of the most common and disruptive manifestations of emotional dysregulation a  but under-researched and oft-misunderstood symptom of ADHD, particularly in adults.

❑ RSD is a brain-based symptom that is likely an innate feature of ADHD.

❑ Often, this intense emotional reaction is hidden from other people. People experiencing  it don’t want to talk about it because of the shame they feel over their lack control, or because they don’t want people to know about this intense vulnerability.

❑ RSD causes extreme emotional pain that may also be triggered by a sense of failure, or falling short — failing to meet either your own high standards or others’ expectation.

❑ Dysphoria is the Greek word meaning unbearable; its use emphasise  the severe physical and emotional pain suffered by people with RSD when they encounter real or perceived rejection, criticism, or teasing. 

What RSD looks like: 

❑ A Disproportionate emotional response (e.g., shame, sadness, anger) to minor criticism or neutral feedback

❑ A Rapid onset and intensity, often described as overwhelming or unbearable

❑ Threat-based interpretation of social cues (e.g., assuming disapproval or abandonment)

❑ Behavioural consequences: avoidance, people-pleasing, withdrawal, rumination, or sudden anger

How RSD presents :

❑ Internalised RSD:

Presents as sudden, intense sadness that can imitate a major mood disorder, sometimes with suicidal ideation. This rapid shift in mood is often misdiagnosed as rapid-cycling bipolar disorder or major depressive episodes.

❑ Externalised  RSD: 

Manifests as instantaneous rage toward the person or situation 

perceived as rejecting.

Can be mistaken for anger dysregulation or oppositional behaviour.

❑ Anticipatory RSD: 

Leads individuals to constantly scan for potential rejection, even when uncertain.

May resemble social phobia, though the core fear is different.

❑ Social Anxiety Vs Rejection Sensitivity: 

Social phobia: fear of public humiliation or negative scrutiny.

RSD: fear of losing love, approval, or respect.

❑ Subjective Experience:

People often struggle to put RSD into words. They describe it as Intense, Awful, Terrible, Overwhelming

The emotional reaction is consistently tied to a perceived or real loss of approval, love, or respect.

Why it occurs in ADHD

❑ Emotion regulation deficits: ADHD involves reduced top-down modulation from prefrontal networks, limiting the ability to dampen emotional responses once triggered.

❑ Heightened limbic reactivity: Increased sensitivity of threat-detection systems (e.g., amygdala) amplifies perceived social threat.

❑ Learning history: Repeated experiences of criticism, failure, or misunderstanding (especially in undiagnosed ADHD) condition strong emotional responses to feedback.

❑ Dopaminergic vulnerability: Fluctuations in reward and motivation systems increase sensitivity to social evaluation.

Articles on Neurodivergent Insights

Extensive articles and self-help guides on ADHD, AuDHD & Autism

ND Connection

A Neurodivergent Community Interest group in the UK.

Their Library brings together resources across a multitude of topics, in various different formats – prioritising the inclusion of neurodiversity-affirming works by Neurodivergent authors. 

Neurodivergent trauma describes the traumatic impact that can arise when autistic, ADHD, or AuDHD individuals repeatedly experience environments that do not accommodate their neurological differences.

Trauma responses in Autistic individuals can look different from those in neurotypical people, and recognising these differences is essential for understanding and appropriate support. Traditional models of trauma responses – fight, flight, freeze and fawn – and the hierarchy and indicators of the Autonomic Nervous System (ANS) states – relaxed (Parasympathetic Ventral Vagal), mobilised (Sympathetic) and immobilised (Parasympathetic Dorsal Vagal) – may manifest uniquely in Autistic individuals due to sensory sensitivities, and communication, social and information processing differences (Polyvagal Institute, 2024;

While neurodivergence itself is not traumatic, ongoing experiences of misunderstanding, exclusion, sensory overload, social rejection, and pressure to conform can contribute to chronic stress and, for some people, symptoms of trauma or complex trauma.

According to studies by Adler et al., (2004) and Kessler et al. (2006), ADHD is actually a risk factor for developing PTSD. But there are a few other factors that contribute to this overlap too.

People with ADHD are at a higher risk for experiencing traumatic events in the first place (Ford et al., 2009). The nervous systems are more sensitive, which means that traumatic events can hit us even harder and make us more likely to develop PTSD (Biederman et al., 2012), 

According to Crenshaw and Mayfield, (2021), early life trauma can act as a trigger for those who are genetically predisposed to ADHD.

Autism and trauma often co-occur, yet this intersection remains under-researched and seldom highlighted in clinical training. Autistic people are at a significantly higher risk of developing PTSD after experiencing trauma due to several factors that intertwine their neurobiology with their social experiences.

 A recent study highlighted that even when criteria A of PTSD (Big T Trauma) is not met, Autistic people will often develop PTSD symptoms (Rumball et al., 2020).

While there are several factors, here are a few of the reasons Autistic people may be more vulnerable to developing PTSD following a traumatic experience.

□ We have more vulnerable neurobiology (more reactive nervous systems)

□ Increased risk of victimisation

□ Sensitive sensory profiles that encode memory with more intensity

□ The chronic stress and invalidation of navigating an allistic world.

❑ Chronic Invalidation:

Many neurodivergent people experience repeated misunderstanding, criticism, bullying, social rejection, or pressure to behave in neurotypical ways. Over time, these experiences can contribute to persistent feelings of shame, hypervigilance, low self-worth, and difficulties trusting others.

❑ Sensory Overload: 

Everyday environments containing bright lights, loud noise, crowded spaces, unexpected touch, or strong smells may repeatedly overwhelm the nervous system. Frequent sensory overload can contribute to chronic stress, fatigue, emotional dysregulation, and heightened threat responses.

❑ Masking:

Many autistic and AuDHD individuals consciously or unconsciously suppress natural ways of communicating, moving, or responding in order to fit social expectations. Although masking may reduce social conflict in the short term, maintaining it over long periods has been associated with increased anxiety, depression, exhaustion, autistic burnout, and reduced wellbeing.

❑ Repeated Social Rejection:

Many neurodivergent people experience repeated experiences of being excluded, criticised, misunderstood, or feeling “different.” Over time, these experiences can increase sensitivity to rejection, reduce self-confidence, and contribute to chronic stress and trauma-related symptoms. This is particularly relevant for individuals with ADHD who experience significant rejection sensitivity.

Immediate versus delayed rewards in ADHD

❑ Dopamine contributes to learning, motivation and the regulation of behaviour. Some midbrain dopamine neurons participate in reward-prediction-error signalling, responding to differences between expected and actual rewards (Schultz, 2016).

❑ When a reward is better than expected, these neurons may briefly increase their firing. When an expected reward is omitted or is less valuable than predicted, their firing may briefly fall below baseline (Schultz, 2016).

❑ In ADHD, a future reward may be less effective at motivating action now. A person can understand that a task matters and want to complete it, yet struggle to begin when the benefit feels distant. Research finds that, on average, people with ADHD show greater temporal discounting: delayed rewards lose their appeal more quickly. This varies between individuals. 

❑ Dopamine helps connect rewarding outcomes with motivation and learning. Dopamine signalling supports learning what is worth pursuing and putting effort into obtaining it. Research in adults with ADHD has linked differences in dopamine reward pathways with lower measures of motivation. This does not establish that everyone with ADHD has uniformly low dopamine or that dopamine alone explains ADHD (Volkow et al., 2011). 

❑ Anticipating a reward may provide a weaker motivational signal. Some brain-imaging studies find reduced activity in the ventral striatum—a region involved in reward and motivation—while people with ADHD await a reward. This may help explain why knowing that something will eventually be worthwhile does not always generate enough motivation to start (Plichta & Scheres, 2014). 

❑ An immediately rewarding activity can therefore have a stronger pull. For example, checking a phone offers something interesting straight away, while completing paperwork may provide a benefit only next week. This illustrates how reward timing can contribute to choosing an immediate activity despite valuing the longer-term goal. 

❑ Making progress and rewards more immediate may help. A practical implication is to divide a distant goal into short steps, make completed progress visible and give timely feedback or small rewards. These approaches bring some of the benefit closer to the effort, rather than requiring the eventual outcome to provide all the motivation. 

Self-Management to Time

Self-management to time is the ability to perceive, estimate and organise time so that present behaviour is guided by future goals, consequences and rewards.

It supports the ability to:

❑ Sense and monitor the passage of time.

❑ Estimate how long activities will take.

❑ Plan ahead and anticipate future demands.

❑ Prioritise competing responsibilities.

❑ Allocate sufficient time to complete activities.

❑ Pace work across lengthy or multi-step tasks.

❑ Maintain awareness of time and future goals while working.

❑ Meet appointments and deadlines.

❑ Work consistently towards longer-term goals.

❑ Allow future consequences and rewards to influence present behaviour.

Difficulties with Self-Management to Time

Adults with ADHD may experience:

❑ Reduced awareness of the passage of time, commonly described as time blindness.

❑ Underestimating how long activities will take or how much can realistically be completed.

❑ Difficulty planning and preparing for future events or responsibilities.

❑ Difficulty prioritising when several demands compete for attention.

❑ Procrastination or delayed task initiation.

❑ Running late despite intending to be punctual.

❑ Forgetting appointments, deadlines or future intentions.

❑ Difficulty pacing lengthy, complex or multi-step activities.

❑ Becoming overwhelmed when organising several tasks across time.

❑ Rushing or completing tasks at the last minute when urgency develops.

❑ Difficulty allocating time and effort to repetitive, uninteresting or minimally rewarding activities.

❑ Becoming intensely absorbed in engaging activities, with reduced awareness of time and competing responsibilities.

❑ Reliance on reminders, calendars, alarms, deadlines, accountability or other external structures.

Time Blindness

Time blindness refers to difficulty accurately perceiving the passage of time and using time as an internal guide for behaviour.

This may mean:

❑ Minutes or hours pass with little awareness.

❑ Activities take considerably longer than expected.

❑ Future events feel psychologically distant.

❑ Deadlines do not feel immediate until they become urgent.

❑ It is difficult to judge how much can realistically be completed within a particular period.

❑ Planning and preparing for future demands is difficult.

As a result, urgency may function as an external substitute for an internal sense of time. A task that was previously difficult to begin may become much easier to engage with when the deadline is close.

Future Goals and Rewards

Self-management to time also involves allowing future goals, consequences and rewards to influence present behaviour.

In ADHD, delayed outcomes may exert less influence over present behaviour than immediate stimulation or reward. A person may fully understand that something is important while still finding it difficult to organise and sustain their behaviour towards that future outcome.

This may contribute to:

❑ Immediate rewards being more motivating than delayed rewards.

❑ Difficulty sustaining effort towards distant goals.

❑ Procrastination when consequences are not immediate.

❑ Reliance on urgency or approaching deadlines to activate behaviour.

❑ Preference for activities that provide immediate interest, stimulation or reward.

❑ Difficulty delaying gratification when an immediately rewarding alternative is available.

Self-management to time is the ability to perceive, estimate and organise time so that present behaviour is guided by future goals, consequences and rewards.

It supports the ability to:

❑ Sense and monitor the passage of time.

❑ Estimate how long activities will take.

❑ Plan ahead and anticipate future demands.

❑ Prioritise competing responsibilities.

❑ Allocate sufficient time to complete activities.

❑ Pace work across lengthy or multi-step tasks.

❑ Maintain awareness of time and future goals while working.

❑ Meet appointments and deadlines.

❑ Work consistently towards longer-term goals.

❑ Allow future consequences and rewards to influence present behaviour.

Difficulties with Self-Management to Time

Adults with ADHD may experience:

❑ Reduced awareness of the passage of time, commonly described as time blindness.

❑ Underestimating how long activities will take or how much can realistically be completed.

❑ Difficulty planning and preparing for future events or responsibilities.

❑ Difficulty prioritising when several demands compete for attention.

❑ Procrastination or delayed task initiation.

❑ Running late despite intending to be punctual.

❑ Forgetting appointments, deadlines or future intentions.

❑ Difficulty pacing lengthy, complex or multi-step activities.

❑ Becoming overwhelmed when organising several tasks across time.

❑ Rushing or completing tasks at the last minute when urgency develops.

❑ Difficulty allocating time and effort to repetitive, uninteresting or minimally rewarding activities.

❑ Becoming intensely absorbed in engaging activities, with reduced awareness of time and competing responsibilities.

❑ Reliance on reminders, calendars, alarms, deadlines, accountability or other external structures.

Time Blindness

Time blindness refers to difficulty accurately perceiving the passage of time and using time as an internal guide for behaviour.

This may mean:

❑ Minutes or hours pass with little awareness.

❑ Activities take considerably longer than expected.

❑ Future events feel psychologically distant.

❑ Deadlines do not feel immediate until they become urgent.

❑ It is difficult to judge how much can realistically be completed within a particular period.

❑ Planning and preparing for future demands is difficult.

As a result, urgency may function as an external substitute for an internal sense of time. A task that was previously difficult to begin may become much easier to engage with when the deadline is close.

Future Goals and Rewards

Self-management to time also involves allowing future goals, consequences and rewards to influence present behaviour.

In ADHD, delayed outcomes may exert less influence over present behaviour than immediate stimulation or reward. A person may fully understand that something is important while still finding it difficult to organise and sustain their behaviour towards that future outcome.

This may contribute to:

❑ Immediate rewards being more motivating than delayed rewards.

❑ Difficulty sustaining effort towards distant goals.

❑ Procrastination when consequences are not immediate.

❑ Reliance on urgency or approaching deadlines to activate behaviour.

❑ Preference for activities that provide immediate interest, stimulation or reward.

❑ Difficulty delaying gratification when an immediately rewarding alternative is available.

Distractibility in ADHD can be understood as difficulty regulating attention in accordance with a goal. 

Attention is captured by;

• an external event
• an internally generated thought
• a more immediately rewarding activity

The person then has difficulty maintaining or restoring attention to the intended task. 

This formulation is broader than a difficulty paying attention.
It concerns the moment-to-moment control of where attention goes, how long it remains there, and when it shifts. 

Barkley’s influential self-regulation model links this control to behavioural inhibition, working memory and the regulation of motivation,

The person may have difficulty selecting:

• task-relevant information
• sustaining a goal
• resisting competing stimuli or thoughts
• returning to the intended task after an interruption. 

The extent of this difficulty varies with;

•  task demands
• cognitive load
• interest, feedback and context. 

Research implicates executive control, motivational processes and interactions among large-scale brain networks; no single attentional deficit or brain-network abnormality explains distractibility in every person with ADHD.

Understanding ADHD Burnout: Causes, Symptoms, and Coping Strategies

Living with ADHD (Attention Deficit Hyperactivity Disorder) means navigating a brain that works differently. While it comes with strengths—like creativity, energy, and unique problem-solving—it also brings daily challenges around focus, organization, and emotional regulation. Add in the constant pressure to keep up in a fast-paced world, and many people with ADHD eventually hit a wall: ADHD burnout.

This type of burnout is often misunderstood, but it’s a very real and overwhelming experience. 

Let’s dive into what it is, why it happens, and how to recover when you feel completely drained.

What Is ADHD Burnout?

ADHD burnout is a state of mental, emotional, and physical exhaustion. It happens when someone with ADHD pushes themselves too hard—often trying to meet external expectations—while also managing the everyday demands that ADHD makes harder.

Some of the key drivers include:

• Constant overwhelm from tasks that feel impossible to finish
• Pressure to “keep up” with neurotypical peers
• The heavy mental load of masking symptoms in work or social settings
• Lack of rest, self-care, or proper support

Over time, this pressure adds up, leaving you feeling depleted, stuck, and hopeless.

Causes of ADHD Burnout

There isn’t just one reason ADHD burnout happens—it’s usually a mix of factors. Here are some of the most common:

Cognitive Overload

Because ADHD impacts executive function, everyday tasks like planning, prioritizing, or meeting deadlines require extra effort. That constant mental strain leads to fatigue.

 Hyperfocus (and the Crash After)

When someone with ADHD locks into a task, they can work for hours straight—forgetting meals, breaks, or rest. Eventually, the body and brain crash, creating burnout.

Inconsistent Motivation

Tasks that feel boring can be almost impossible to start, while interesting ones may lead to overwork. That rollercoaster creates stress and imbalance.

Social and Emotional Stress

ADHD often comes with feeling misunderstood, judged, or “not enough.” Social interactions can feel draining, and emotional stress compounds the burnout cycle.

Masking

Trying to hide ADHD traits in professional or social settings takes huge effort. Over time, that performance is exhausting.

Sleep Struggles

Many people with ADHD wrestle with insomnia, racing thoughts, or irregular sleep patterns. Poor rest makes recovery from burnout even harder.

Signs and Symptoms of ADHD Burnout

ADHD burnout can look different for everyone, but some common signs include:

• Emotional exhaustion – feeling empty, drained, or numb
• Difficulty prioritizing – getting stuck, unable to decide what to do first
• Physical fatigue – tired no matter how much you rest
• Impulsivity – turning to quick “escapes” like shopping, eating, or scrolling
• Social withdrawal – avoiding people because it feels overwhelming
• Brain fog – struggling to concentrate, even on things you enjoy
• Mood swings or irritability – snapping over small things
• Declining performance – work, school, or relationships start to suffer
• Hopelessness – believing you’ll never “catch up”

Coping Strategies: How to Recover from ADHD Burnout

The good news is: recovery is possible. It takes patience, self-compassion, and strategies that work with your ADHD brain—not against it. Here are some steps to help you reset:

1. Recognize the Signs Early

Burnout sneaks up on you. Noticing the red flags (irritability, brain fog, emotional fatigue) gives you a chance to pause before things get worse.

2. Lower the Bar

Set realistic expectations. Perfectionism and impossible standards feed burnout—aim for “good enough” instead of “perfect.”

3. Use ADHD-Friendly Tools

• Break tasks into smaller steps
• Use timers (Pomodoro method works well)
• Create visual reminders like task boards or sticky notes

4. Build in Breaks

Schedule downtime the way you would schedule a meeting. Your brain needs recovery time.

5. Practice Self-Compassion

ADHD isn’t about laziness or weakness—it’s neurological. Speak to yourself kindly and give yourself permission to rest.

Article  

Prenatal and Early Life Risk Factors of ADHD: What Research Says — and What Parents Can Do.

Additude Article September 2025

For most people with ADHD, many genetic and environmental risk factors accumulate to cause the disorder (Faraone et al., 2015).

The environmental risks for ADHD exert their effects very early in life, during the fetal or early postnatal period. In rare cases, however, ADHD-like symptoms can be caused by extreme deprivation early in life (Kennedy et al., 2016), a single genetic abnormality (Faraone and Larsson, 2018), or traumatic brain injury early in life (Stojanovski et al., 2019).

These findings are helpful to understand the causes of ADHD but are not useful for diagnosing the disorder.

The associations between aspects of the environment and the onset of ADHD have attained a very high level of evidential support. Some have strong evidence for a causal role but, for most, the possibility remains that these associations are due to correlated genetic and environmental effects.

For this reason, we refer to features of the pre- and post-natal environments that increase risk for ADHD as correlates, rather than causes. 

The genetic and environmental risks described below are not necessarily specific to ADHD.

ADHD can also be the result of rare single gene defects (Faraone and Larsson, 2018) or abnormalities of the chromosomes (Cederlof et al., 2014). When the DNA of 8000+ children with autism spectrum disorder (ASD) and/or ADHD and 5000 controls was analyzed, those with ASD and those with ADHD had an increased rate of rare genetic mutations compared with controls (Satterstrom et al., 2019).

A review of 37 twin studies from the United States, Europe, Scandinavia, and Australia found that genes and their interaction with the environment must play a substantial role in causing ADHD (Faraone and Larsson, 2018; Larsson et al., 2014a; Pettersson et al., 2019).

In a genomewide study, an international team analysed DNA from over 20,000 people with ADHD and over 35,000 without ADHD from the United States, Europe, Scandinavia, China, and Australia. They identified many genetic risk variants, each having a small effect on the risk for the disorder (Demontis et al., 2019).
This study confirmed a polygenic cause for most cases of ADHD, meaning that many genetic variants, each having a very small effect, combine to increase risk for the disorder. The polygenic risk for ADHD is associated with general psychopathology (Brikell et al., 2020) and several psychiatric disorders (Lee et al., 2019a,b

Family, twin, and DNA studies show that genetic and environmental influences are partially shared between ADHD and many other psychiatric disorders (e.g. schizophrenia, depression, bipolar disorder, autism spectrum disorder, conduct disorder, eating disorders, and substance usedisorders) and with somatic disorders (e.g. migraine and obesity) (Demontis et al., 2019) (Faraone and Larsson, 2018) (Ghirardi et al., 2018) (Lee et al., 2019a,b) (Lee et al., 2013) (Anttila et al., 2018; Tylee et al., 2018) (van Hulzen et al., 2017) (Vink and Schellekens, 2018) (Brikell et al., 2018) (Chen et al., 2019a) (Yao et al., 2019).

However, there is also a unique genetic risk for ADHD.

Evidence of shared genetic and environmental risks among disorders suggest that these disorders also share a pathophysiology in the biological pathways that dysregulate neurodevelopment and create brain variations leading to disorder onset.

Very large studies of families suggest that ADHD shares genetic or familial causes with autoimmune diseases (Li et al., 2019), hypospadias (Butwicka et al., 2015), and intellectual disability (Faraone and Larsson, 2018).

ADHD Brain