03/14/2026
Why Do So Many People With POTS Feel Like Their Body Short-Circuits” When They Stand Up?
Many people with Postural Orthostatic Tachycardia Syndrome (POTS) describe the same experience: you stand up and suddenly feel dizzy, your heart races, your brain feels foggy, and your energy disappears.
For a long time, this was often treated as just a heart rate problem. But newer research is helping us understand that POTS is much more complex than that.
The research explains that POTS is really a disorder of the autonomic nervous system—the system that automatically controls things like heart rate, blood pressure, circulation, digestion, and stress responses.
When that system isn’t regulating properly, the body struggles to adjust when you change position. Instead of maintaining stable circulation to the brain, the heart speeds up dramatically to compensate.
But the bigger takeaway from the research is this:
POTS rarely happens because of just one issue.
Researchers describe several biological factors that often occur together, including:
• Disruption of the autonomic nervous system
• Low blood volume or poor circulation control
• Immune system changes after infections
• Inflammation affecting nerve function
• Impaired regulation of blood vessels
This helps explain why many people develop POTS after a viral illness, a concussion, significant stress, or another major physiological event. Something disrupts the body’s ability to regulate itself—and the system gets stuck in an unstable pattern.
Why this matters for people with POTS
Many people with POTS have tried treatments that only focus on one part of the problem—like salt intake, compression garments, or medications aimed at controlling heart rate.
Those tools can help some people. But for many patients, symptoms continue because the underlying systems that regulate circulation and nervous system balance are still dysregulated.**
This is also why symptoms often go far beyond heart rate, including:
• Brain fog
• Chronic fatigue
• Lightheadedness
• Exercise intolerance
• Difficulty concentrating
• Feeling “wired but exhausted”
These are all signs that the brain-body communication systems controlling autonomic regulation are struggling to stabilize.
Why many POTS patients eventually seek care at Peak Brain and Body
One of the reasons people with POTS come to Peak Brain and Body is because they’ve realized their symptoms aren’t just about heart rate—they’re about how the brain, nervous system, circulation, immune system, and metabolism are interacting.
Instead of only trying to suppress symptoms, the goal is to evaluate why the autonomic system became dysregulated in the first place and identify the factors that are preventing it from stabilizing again.
For many patients, understanding those underlying drivers is the turning point—because once you understand what’s disrupting regulation, you can start building a plan aimed at restoring stability rather than just managing symptoms.
If you’ve been living with POTS and feel like your body just isn’t regulating the way it should, research like this helps confirm something important:
Your symptoms are real, they’re rooted in physiology, and they often require a systems-based approach to move forward.
Source:
Frontiers in Cardiovascular Medicine – *Long COVID-19 and Postural Orthostatic Tachycardia Syndrome* (2022)
