Bright morning light could sharpen Students' minds and moods
NCT ID NCT07685262
First seen Jul 06, 2026 · Last updated Jul 07, 2026 · Updated 1 time
Summary
This study tests whether a week of morning bright light therapy improves sleep, alertness, mood, and thinking in healthy university students. Participants use a 10,000-lux light box for 30 minutes each morning for one week, and their results are compared to a week with usual lighting. Sleep is tracked with a Fitbit and diary, and participants complete daily mood and thinking tasks. The goal is to see if a simple morning light routine can help students who often have irregular sleep and limited daylight exposure.
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 light box)
- What this could lead to
- If it works, this could point toward a simple, drug-free way for students to improve sleep regularity, daytime alertness, and mood.
- What could go wrong
- This is a small, early-stage trial in healthy volunteers, so results may not apply to people with sleep disorders. The effect may be modest or not last beyond the study week.
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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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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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The Hong Kong Polytechnic University
RECRUITINGHung Hom, Hong Kong
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