Bright light therapy shows promise for Parkinson's sleep and mood

NCT ID NCT05524961

First seen Mar 27, 2026 · Last updated May 14, 2026 · Updated 9 times

Summary

This study tested whether bright light therapy can improve daytime sleepiness and mood in people with Parkinson's disease. 69 participants were randomly assigned to receive bright light, a placebo light, or an active control. The goal was to see if this simple, non-drug approach could ease common symptoms like sleepiness and depression.

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Contacts and locations

Locations

  • The Chinese University of Hong Kong

    Hong Kong, Hong Kong

Conditions

Explore the condition pages connected to this study.