Light exposure may sharpen your mind and improve sleep
NCT ID NCT02858765
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at how different times of light exposure affect sleep, brain waves, and thinking skills in 92 healthy adults aged 18 to 40. Participants were exposed to white light for 2.5 hours at various times of day. The goal was to understand light's influence on sleep quality and mental tasks, and to test new ways of recording brain activity over long periods.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
white polychromatic light
What this could lead to
If successful, this could help design better lighting to improve sleep and mental performance.
What could go wrong
This is a small, early-stage study in healthy volunteers, so results may not apply to people with sleep disorders or other conditions.
Disclaimer
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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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Hôpitaux Universitaires de Strasbourg
Strasbourg, 67091, France