Scientists scan brains to unravel why effort hurts in chronic fatigue

NCT ID NCT06472622

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study uses functional MRI to see how the brain processes unpleasant sensations like pain and physical effort in people with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) compared to healthy volunteers. Researchers will apply mild heat and ask participants to squeeze a bar while scanning their brains. The goal is to identify which brain regions are linked to the feeling of unpleasantness, which may help explain symptoms of ME/CFS.

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 study could help explain why people with ME/CFS find pain and effort more unpleasant, potentially guiding future treatments.

What could go wrong

This is a very early, small study (47 people) focused on measuring brain activity, not testing a treatment. It may not lead to direct benefits for patients.

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.

myalgic encephalomeyelitis/chronic fatigue syndrome Pain

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••