Green light may be a new painkiller – but how?
NCT ID NCT05295225
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study tests whether green light can reduce pain by looking at brain activity in 30 healthy adults. Participants are exposed to green or white light for two hours while researchers measure pain pathways and brain waves. The goal is to understand how green light works, not to treat pain directly.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Green Light Emitting Diode (GLED) device
- What this could lead to
- If successful, this could help explain how green light reduces pain, potentially leading to new non-drug pain relief methods.
- What could go wrong
- This is a very early, small study in healthy people without chronic pain, so results may not apply to patients. It only looks at brain activity, not actual pain relief.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Banner University Medical Center Tucson
Tucson, Arizona, 85724, United States
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