AuDHD and Somatic Super-Syndrome: EDS, POTS, and MCAS
Clinical evaluation of connective tissue laxity, autonomic instability, and immune system reactions commonly observed in ADHD and Autism.
Neurodiversity and Body Integrity
Health issues in the neurodivergent spectrum (especially AuDHD) are not confined to the central nervous system; they encompass systemic somatic pathologies. Modern medical literature points to a strikingly high co-occurrence of **Hypermobile Ehlers-Danlos Syndrome (hEDS) / Hypermobility Spectrum Disorder (HSD)**, **Postural Orthostatic Tachycardia Syndrome (POTS)**, and **Mast Cell Activation Syndrome (MCAS)**.
This clinical triad is referred to as "Somatic Super-Syndrome."
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Connective Tissue Laxity and Venous Pooling
Collagen provides structural integrity to ligaments, skin, and blood vessel walls. Genetic variations in collagen synthesis lead not only to hypermobile joints, but also to overly compliant vascular walls.
When standing, gravity pulls blood downward, resulting in venous pooling in the legs and splanchnic bed.
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Autonomic Nervous System and POTS
Reduced cerebral blood flow signals danger to the autonomic nervous system, which triggers an intense compensatory **sympathetic discharge**.
This manifests as POTS (Postural Orthostatic Tachycardia Syndrome): an abnormally elevated heart rate upon standing, severe lightheadedness, chronic exhaustion, and brain fog.
> [!TIP]
> Individuals with POTS often require increased sodium intake, high fluid consumption, and medical compression garments to maintain autonomic equilibrium.
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Immune Dysregulation and MCAS
Persistent sympathetic dominance lowers the activation threshold of **mast cells** — the frontline of the immune system.
In MCAS (Mast Cell Activation Syndrome), mast cells degranulate uncontrollably in response to minor environmental triggers (temperature shifts, foods, stress), releasing histamine and inflammatory cytokines. This causes systemic inflammation and breaches the blood-brain barrier, worsening neuroinflammation, brain fog, and emotional dysregulation (RSD).