17/10/2026
Understanding Dysautonomia: What Are the Different Types? 🫀🧠✨
Dysautonomia isn't a single condition, it’s an umbrella term for conditions caused by a malfunction in the Autonomic Nervous System (ANS), which controls everything your body does automatically (like heart rate, blood pressure, digestion, and temperature regulation).
Because stretchy connective tissue can affect blood vessel tone and blood volume, dysautonomia frequently co-occurs alongside hypermobility syndromes, such as hEDS, and HSD.
Here is a quick breakdown of the primary forms of dysautonomia:
💓 Postural Orthostatic Tachycardia Syndrome (POTS):
The most well-known form. When moving from lying to standing, blood pools in the lower body. To keep oxygen reaching the brain, the ANS triggers an abnormally high jump in heart rate (often accompanied by dizziness, fatigue, and brain fog) without a persistent drop in blood pressure.
🩸 Neurocardiogenic Syncope (NCS) / Vasovagal Syncope:
The most common form of dysautonomia. It causes sudden drops in heart rate and blood pressure when standing, standing for long periods, or in response to triggers (like heat or stress), leading to lightheadedness or fainting.
📉 Orthostatic Hypotension (OH):
A significant and sustained drop in blood pressure upon standing, leading to dizziness, blurred vision, or fainting, because the body struggles to pump blood upward against gravity.
⚖️ Inappropriate Sinus Tachycardia (IST):
Characterised by an unexplained high resting heart rate (over 100 bpm) or an exaggerated spike with minimal physical effort, regardless of posture.
🌡️ Pure Autonomic Failure (PAF) & Multiple System Atrophy (MSA):
Rarer, progressive neurological disorders that cause widespread failure of autonomic functions, including severe orthostatic hypotension and temperature regulation issues.
Whether you experience occasional dizzy spells or manage daily POTS symptoms, understanding your specific autonomic pattern helps in finding the right mix of fluid/salt protocols, compression wear, and nervous system support!
💬 Which form of dysautonomia or orthostatic intolerance forms part of your journey? Let us know in the comments below! 👇
🔗 Learn more about , the types and so much more from our friends over at POTS UK 💜
- TeamHMSA