Brighter days linked to better sleep, study finds

MedicalXpress | Jul 09, 2026

A new study led by University of Manchester scientists has revealed that brighter, more consistent daytime light exposure could be key to earlier bedtimes, better-quality sleep and deeper rest. The research throws new light on sleep—one of the body's most basic needs, which can trigger problems with mood, memory, metabolism and long-term health when disturbed.