Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental condition characterised by persistent patterns of inattention, hyperactivity, and impulsivity that interfere with functioning and development. It is one of the most common neurodevelopmental conditions, affecting both children and adults across all cultures and demographics.
ADHD is not a deficit of attention , it is a deficit of attention regulation. People with ADHD can hyperfocus intensely on things that interest them, yet struggle profoundly with tasks they find unstimulating. This is a neurobiological difference, not a character flaw or lack of effort.
Inattentive (ADHD-I)
Difficulty sustaining attention, easily distracted, forgetful, loses things, avoids tasks requiring sustained mental effort. Often missed, particularly in girls and women.
Hyperactive-Impulsive (ADHD-HI)
Restlessness, fidgeting, talking excessively, interrupting, difficulty waiting. More visible, historically over-diagnosed in boys.
Combined (ADHD-C)
Both inattentive and hyperactive-impulsive symptoms present. Most common presentation in clinical populations.
ADHD was historically considered a childhood condition, but research confirms that symptoms persist into adulthood in approximately 60-70% of cases. Adult ADHD often presents differently: hyperactivity may internalise as mental restlessness, while executive dysfunction, emotional dysregulation, and time blindness become the dominant challenges. Many adults are diagnosed only after their child receives a diagnosis.
ADHD is significantly under-diagnosed in women and girls. The inattentive presentation is more common in females, is less disruptive behaviourally, and is frequently misattributed to anxiety or depression. Women with ADHD face higher rates of burnout, internalised shame, and delayed diagnosis , often not identified until their 30s or 40s.
ADHD rarely travels alone. Common co-occurring conditions include: anxiety disorders (50%), depression (30%), autism spectrum conditions (20-50%), sleep disorders, learning differences (dyslexia, dyscalculia), substance use disorder (elevated risk), oppositional defiant disorder (in children), and Central Sensitisation Syndrome (chronic pain overlap).
This portal is designed to make ADHD easier to understand, but Recalibrate aims to support people living with real executive-function strain, burnout, symptom overlap, and the challenge of building systems that actually work in day-to-day life.
What this portal gives you
ADHD explainers, screening, medication guidance, treatment evidence, research, and specialist direction.
What Recalibrate adds
A wider support ecosystem for people navigating neurodivergence, stress, symptom complexity, and sustainable health systems.
Central Sensitisation
Stress load, pain, sensory overwhelm, and nervous-system burden can overlap. Open CSS portal →
Fibromyalgia
Sleep disruption, sensory sensitivity, and executive strain often co-exist with chronic pain. Open Fibromyalgia portal →
Long COVID / ME-CFS
Brain fog, fatigue, pacing difficulty, and neurocognitive symptoms can overlap. Open Long COVID portal →
Recalibrate ecosystem
Explore broader support at recalibratepain.com →
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ADHD involves measurable differences in brain structure, function, and neurochemistry , particularly in the prefrontal cortex and its connections to reward and attentional networks.
Dopamine Dysregulation
Reduced dopamine signalling in the prefrontal cortex and striatum. Dopamine drives motivation, reward anticipation, and sustained attention. Low dopamine = low drive for non-stimulating tasks.
Norepinephrine Deficiency
Norepinephrine modulates prefrontal cortex function , affecting focus, working memory, and impulse control. Deficiency disrupts signal-to-noise ratio in attention networks.
Prefrontal Cortex Differences
The PFC governs executive function: planning, impulse control, working memory, and emotional regulation. In ADHD, PFC activation is reduced during tasks requiring sustained effort.
Default Mode Network
In neurotypical brains, the DMN (mind-wandering network) deactivates during tasks. In ADHD, the DMN fails to deactivate properly, causing intrusive thoughts and attention lapses.
Delayed Cortical Maturation
MRI studies show the ADHD brain matures approximately 3-5 years later than neurotypical brains. The prefrontal cortex is particularly affected.
Reward System Differences
ADHD brains require higher stimulation to activate the reward pathway. This drives novelty-seeking, risk-taking, and hyperfocus on inherently interesting tasks.
Executive functions are the brain's management system. ADHD impairs all six core domains: working memory (holding information in mind), cognitive flexibility (shifting between tasks), inhibition (stopping impulses), planning (sequencing steps), emotional regulation (modulating reactions), and task initiation (starting). These are not motivational failures , they are neurobiological impairments.
The ADHD brain is driven by an interest-based nervous system rather than an importance-based one. Tasks that are novel, urgent, challenging, or interesting activate sufficient dopamine to enable focus. Tasks that are routine, repetitive, or externally imposed , regardless of importance , fail to generate enough dopamine for sustained engagement. This is why people with ADHD can spend hours on a hobby but cannot complete a 10-minute administrative task.
Based on the WHO Adult ADHD Self-Report Scale (ASRS-v1.1). Rate how often each applies to you over the past 6 months. This is a screening tool, not a clinical diagnosis.
1. How often do you have trouble wrapping up the final details of a project, once the challenging parts have been done?
2. How often do you have difficulty getting things in order when you have to do a task that requires organisation?
3. How often do you have problems remembering appointments or obligations?
4. When you have a task that requires a lot of thought, how often do you avoid or delay getting started?
5. How often do you fidget or squirm with your hands or feet when you have to sit down for a long time?
6. How often do you feel overly active and compelled to do things, as if driven by a motor?
7. How often do you make careless mistakes when you have to work on a boring or difficult project?
8. How often do you have difficulty keeping your attention when doing boring or repetitive work?
9. How often do you have difficulty concentrating on what people say to you, even when they are speaking to you directly?
10. How often do you misplace or have difficulty finding things at home or at work?
All medications require prescription and medical supervision. This guide is for educational purposes only. Effectiveness varies significantly between individuals.
Blocks reuptake of dopamine and norepinephrine, increasing their availability in the prefrontal cortex. The most prescribed ADHD medication globally. Available in short-acting (3-5h) and long-acting (8-12h) formulations.
Triggers active release of dopamine and norepinephrine in addition to blocking reuptake. Generally considered more potent than methylphenidate. Widely prescribed in the US. Less available in some countries.
Selectively blocks norepinephrine reuptake. Takes 4-8 weeks for full effect. Preferred when stimulants are contraindicated, in patients with anxiety, substance use history, or tic disorders. 24-hour coverage with no rebound.
Activates alpha-2A receptors in the prefrontal cortex, strengthening working memory and attention signals. Particularly effective for emotional dysregulation and hyperactivity. Often used as adjunct to stimulants or alone when stimulants are not tolerated.
Originally an antidepressant with dopaminergic activity. Off-label for ADHD with comorbid depression or when stimulants are not tolerated. Moderate effectiveness for ADHD symptoms. Does not exacerbate anxiety.
Evidence grades: A Strong · B Moderate · C Emerging · D Limited
| Treatment | Evidence | Notes |
|---|---|---|
| ADHD Coaching | A | Goal-setting, accountability, executive function scaffolding. Most effective non-pharmacological intervention for adults. Addresses real-world functioning rather than symptom reduction alone. |
| Cognitive Behavioural Therapy (CBT) | A | ADHD-specific CBT addresses negative self-beliefs, procrastination, organisation, and emotional regulation. Significantly more effective than general CBT in ADHD populations. |
| Aerobic Exercise | A | Consistently shown to increase dopamine and norepinephrine acutely. 20-30 minutes of moderate-intensity cardio can improve focus for 2-4 hours. One of the most accessible, evidence-backed interventions. |
| Behavioural Parent Training | A | For children with ADHD. Parents learn evidence-based strategies for behaviour management, consistency, and positive reinforcement. First-line non-medication intervention for children under 6. |
| Mindfulness-Based Interventions | B | Regular mindfulness practice improves attention regulation, emotional reactivity, and self-awareness in ADHD adults. Less effective as sole treatment but valuable adjunct. |
| Sleep Optimisation | B | ADHD and sleep disorders are deeply linked (circadian rhythm differences, delayed sleep phase common). Consistent sleep dramatically improves ADHD symptom severity. Often undertreated. |
| Dietary Interventions | B | Omega-3 supplementation (EPA/DHA) shows modest but consistent benefit. Reduced artificial additives/food colouring may help in children. Mediterranean diet associated with lower symptom severity. |
| Neurofeedback (EEG Biofeedback) | C | Training brain wave patterns associated with attention. Emerging evidence, mixed results in RCTs. Time-intensive and expensive but some patients report significant benefit. |
| Working Memory Training | C | Programs like Cogmed show short-term working memory gains but transfer to real-world ADHD outcomes is inconsistent in literature. |
| Caffeine | D | Adenosine antagonist with mild dopaminergic effects. Many adults with undiagnosed ADHD self-medicate with caffeine. Not a substitute for treatment but does have measurable, if modest, attentional effects. |
Time Management
Use external timers constantly. Time blindness is neurological, not laziness. Body doubling (working near others) dramatically improves task initiation. The Pomodoro technique (25 min work, 5 min break) works well for many ADHD brains.
Organisation Systems
External systems must replace internal working memory. Everything visible, nothing hidden. Use open shelving, see-through containers, whiteboards. If it is out of sight, it does not exist.
Task Initiation
Reduce activation energy: lay everything out the night before, start with the smallest possible step ("just open the document"), use implementation intentions ("when X happens, I will do Y"). Deadlines and accountability are powerful ADHD activators.
Emotional Regulation
Rejection Sensitive Dysphoria (RSD) is common , perceived criticism triggers intense emotional pain. Name it when it happens. The HALT check (Hungry, Angry, Lonely, Tired) predicts dysregulation episodes. Physical exercise before difficult interactions helps.
Sleep and Routine
ADHD brains have a natural delayed sleep phase. Work with it where possible. Consistent wake time (not just bedtime) anchors the circadian rhythm. Bright light in the morning advances sleep phase. Screens before bed worsen ADHD sleep significantly.
Work and Study
Request reasonable adjustments: extended time, written instructions, reduced distraction environment. ADHD is a protected disability in most jurisdictions. Know your rights. Playing background music or ambient noise can improve focus , the brain needs stimulation to function.
Psychiatrists are most commonly the primary diagnosing and prescribing clinicians for ADHD. Clinical psychologists can diagnose (but not prescribe). Specialist ADHD nurses, GPs with ADHD training, and neuropsychologists also assess. For children: paediatricians and CAMHS (UK) are common referral routes.
Ask your GP for a referral to a psychiatrist or ADHD specialist. In the UK, you have the right to choose your provider under the NHS Right to Choose scheme , this can significantly reduce wait times. Private assessment is available but typically costs £500-1500. Many patients find psychiatrists via ADHD communities and word of mouth.
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