Scientists probe why POTS patients feel foggy

NCT ID NCT04137757

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study looks at why people with Postural Tachycardia Syndrome (POTS) often have trouble thinking clearly, known as 'brain fog.' Researchers will compare brain scans of 21 POTS patients and healthy volunteers while they do mental tasks, both sitting and under simulated standing stress. The goal is to see if brain regions work harder in POTS patients, especially when upright.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to

If successful, this could help explain the cause of brain fog in POTS, pointing toward future treatments or management strategies.

What could go wrong

This is a small, early-stage observational study with only 21 participants. It is not testing a treatment, so it may not lead directly to any therapy.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

postural orthostatic tachycardia syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Penn State Milton S. Hershey Medical Center

    Hershey, Pennsylvania, 17033, United States