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How light regulates the human circadian clock

Original: Fundamentals of circadian entrainment by light (2021)

A 2021 review article, 'Fundamentals of circadian entrainment by light', published in a Sage journal, is drawing fresh attention. The paper explains how light exposure synchronizes the body's internal clock, covering the mechanisms by which the circadian system responds to intensity, timing, and spectrum of light. Readers are revisiting the work, which has implications for sleep health, lighting design, and shift work.

Why now: Interest in sleep health and light exposure science continues to drive attention to this foundational review.

Sage Publishingcircadian rhythm researchhuman circadian system

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