Light therapy for depression: does season matter?
NCT ID NCT07599124
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at whether bright light therapy helps depression equally well in spring/summer compared to autumn/winter. Over 200 adults with depression received daily 30-minute light sessions for at least a week. Researchers measured symptom changes and followed up for three months to see if the season affects how well the treatment works.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Bright light therapy (10,000 lux LED lamp)
What this could lead to
If successful, this could show that light therapy works year-round for depression, not just in darker seasons.
What could go wrong
This is a completed observational study, not a large controlled trial. Results may not apply to all types of depression, and individual responses vary.
Disclaimer
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This is a summary of
the original study
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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.
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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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GGzE
Eindhoven, 5626ND, Netherlands