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Sleep, Light, Circadian, Central Oxidative Stress
Sponsor: Brigham and Women's Hospital
Summary
Irregular sleep timing and sleep deficiency are pervasive in society despite evidence that sleep deficiency impairs cognition and is linked to neurodegenerative disease. Potential pathways underlying the adverse cognitive function and brain health associated with irregular insufficient sleep include misalignment of sleep from the internal \~24-hour body clock and brain oxidative stress. This research will investigate these putative pathways and inform future interventions to mitigate the impact of sleep loss on cognition and brain health.
Official title: Role of Ambien Lighting in Circadian Misalignment in a Chronic Variable Sleep Deficiency Paradigm: Impact on Sleep, Cognition, and Central Oxidative Stress
Key Details
Gender
All
Age Range
18 Years - 40 Years
Study Type
INTERVENTIONAL
Enrollment
40
Start Date
2026-03-30
Completion Date
2029-06-30
Last Updated
2026-03-13
Healthy Volunteers
Yes
Interventions
Chronic Variable Sleep Deficiency
Repeated cycles of sleep restriction followed by recovery sleep.
Sleep- and Circadian-Informed Lighting
Ambient visible light exposure with modulated intensity and spectrum
Dim Light
\<3 lux dim ambient lighting while awake
Room light
\~90 lux ambient lighting while awake
Control sleep
Nightly 8-h sleep opportunity