Hypermobility and ADHD: Is There a Connection?
Many adults with ADHD also live with unexplained joint pain, fatigue, dizziness, or feeling like their body doesn't work the way it should. If you have ADHD and hypermobile joints, you're not alone—and there's emerging science explaining why.
Research shows 50% of adults with ADHD are hypermobile, and people with hypermobility spectrum disorder (HSD) or Ehlers‑Danlos syndrome (EDS) are 5‑6 times more likely to have ADHD. This isn't coincidence: genetic, neurological, and autonomic factors link the two.
In this article, we'll break down the evidence, how it affects daily life, and what to do next—especially for UK adults seeking assessment and support.
What Are Hypermobility and ADHD?
Hypermobility Spectrum Disorders (HSD) and EDS
Joint hypermobility means your joints move beyond the normal range. When it causes symptoms, it's called hypermobility spectrum disorder (HSD) or hypermobile Ehlers‑Danlos syndrome (hEDS). Common issues include:
Chronic joint pain and fatigue
Frequent injuries, dislocations, or sprains
Autonomic dysfunction (POTS, dizziness on standing)
Gastrointestinal problems, headaches, poor sleep
Up to 20% of the UK population has some hypermobility, but only 10% experience significant symptoms.
ADHD in Adults
Adult ADHD involves persistent inattention, impulsivity, and executive dysfunction that impair work, relationships, and daily life. Symptoms include:
Difficulty starting/completing tasks
Forgetfulness, disorganisation
Time blindness, emotional dysregulation
Restlessness or "mental noise"
The overlap: Adults with hypermobility are far more likely to have ADHD (and vice versa), with rates up to 48.6% hypermobile in ADHD cohorts vs 10‑20% in controls.
What Research Says About the Hypermobility-ADHD Link
Prevalence Studies
A 2021 Swedish study of 431 adults with ADHD found significantly higher rates of generalised joint hypermobility (GJH) compared to controls, especially when hypermobility came with pain or skin issues.
Brighton & Sussex Medical School research (2022) tested 37 adults with ADHD/autism/tic disorders: 48.6% were hypermobile vs 10.3% in healthy controls, with higher autonomic symptoms.
Swedish population study: ADHD is over‑represented in EDS/HSD, with nearly half of EDS patients meeting ADHD criteria.
Genetic and Neurological Factors
Both conditions share:
Dopamine dysregulation: ADHD's hallmark; hypermobility affects connective tissue → autonomic issues → dopamine imbalance.
Autonomic nervous system dysfunction: POTS and orthostatic intolerance are common in both, mediating the link between neurodivergence and hypermobility.
Shared heritability: Gene variants affecting synaptic function, neural development, and connective tissue overlap.
Animal models even show hypermobility linked to ADHD‑like behaviours, suggesting a cross‑species biological basis.
UK relevance: These findings are driving increased awareness in NHS rheumatology and neurodiversity services.
How Having Both Affects Daily Life
Work and Productivity
The double hit of brain fog + physical fatigue creates vicious cycles:
ADHD makes starting tasks hard; hypermobility pain distracts and exhausts
Autonomic crashes (dizziness, brain fog) interrupt focus
Result: Higher absenteeism, underperformance, job instability
One study found neurodivergent + hypermobile adults have 3x higher anxiety/depression rates, amplifying work stress.
Mental Health and Relationships
Emotional dysregulation from ADHD + chronic pain frustration from hypermobility
Sensory overload common to both
Higher autism/tic disorder co‑occurrence complicates social navigation
Physical Toll
Poor proprioception (body position sense) worsens coordination, increases injuries
Gut issues, poor sleep compound fatigue
Chronic inflammation may link both conditions
Patient voice: "My ADHD made me forget my physio exercises; my hypermobility made me too sore to sit at my desk. Getting both diagnosed changed everything."
How to Get Assessed and Supported for Both in the UK
Step 1: GP Assessment
Request Beighton Score (hypermobility test) + ADHD screening (ASRS questionnaire)
Ask for referrals: rheumatology (hypermobility/HSD/EDS) + adult ADHD service (psychiatry/neuropsychiatry)
Mention autonomic symptoms (dizziness, fatigue) for POTS/dysautonomia referral
NHS reality: Long waits (1+ years). Private assessment often faster.
Step 2: Specialist Diagnosis
ADHD: DIVA‑5 interview (gold standard); NICE guidelines
Hypermobility: Beighton Score ≥5/9 + symptoms → HSD/hEDS diagnosis
Autonomic testing: Tilt table if POTS suspected
Step 3: Treatment and Support
ADHD: Methylphenidate, lisdexamfetamine, atomoxetine
Hypermobility: Physiotherapy, pain management, compression garments
Both: Autonomic management (salt/fluids, meds), CBT/ADHD coaching
FAQs
Is hypermobility linked to ADHD?
Yes, research shows a strong statistical link. Adults with ADHD are 4‑6 times more likely to have joint hypermobility than the general population, and vice versa. Brighton & Sussex studies found 48.6% of neurodivergent adults were hypermobile vs 10% of controls. Autonomic dysfunction (POTS) and dopamine dysregulation appear to mediate this connection.
Can you have EDS and ADHD?
Absolutely. Ehlers‑Danlos syndrome (hEDS) and ADHD co‑occur at rates up to 50% in some studies. Swedish research found ADHD over‑represented in EDS/HSD populations, with shared genetic variants affecting connective tissue and neural development. If you have EDS symptoms (joint instability, pain, GI issues) plus ADHD traits, screening for both is recommended.
Why do hypermobility and ADHD occur together?
Three main reasons:
Genetic overlap: Shared gene variants affecting collagen, synaptic function, and dopamine pathways.
Autonomic dysfunction: Hypermobility → poor vascular tone → brain hypoperfusion → ADHD‑like symptoms.
Neurological wiring: Both linked to proprioception issues and sensory processing differences.
UK researchers now recommend routine hypermobility screening in ADHD clinics.
Book your ADHD assessment to explore this connection at focusgently.com.
