Glasses that shine light on postpartum depression
NCT ID NCT04845347
First seen Feb 12, 2026 · Last updated Jun 23, 2026 · Updated 17 times
Summary
This study tested a wearable morning light device (Re-Timer) for women with postpartum depression. 95 women wore either bright or dim light glasses for 60 minutes each morning for 5 weeks. Researchers measured changes in depression symptoms, sleep, and body clock timing. The goal was to see if bright light therapy could improve mood and reset the internal clock after childbirth.
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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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Contacts and locations
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Locations
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University of Michigan
Ann Arbor, Michigan, 48109, United States
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 via wearable glasses (Re-Timer)
What this could lead to
If it works, this could offer a simple, drug-free option to ease postpartum depression symptoms at home.
What could go wrong
This is a small, early-stage study with no phase designation. The placebo (dim light) may also improve symptoms, making it hard to prove the bright light is better. Results may not apply to all women with postpartum depression.
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.