Managing Blue Light Exposure: Impacts on Sleep Quality and Circadian Health
DOI:
https://doi.org/10.12775/QS.2024.25.56741Keywords
blue light, circadian rhythm, sleep quality, melatonin, mobile devicesAbstract
Introduction: Blue light, a high-energy visible light emitted from natural and artificial sources, plays a crucial role in regulating circadian rhythms and sleep quality. While essential for maintaining alertness and synchronizing the biological clock, excessive exposure, especially during evening hours, disrupts melatonin production, adversely impacting sleep and overall health.
Purpose of Work: This paper investigates the effects of blue light exposure on circadian rhythms and sleep quality, aiming to evaluate its biological mechanisms and health implications. Additionally, it explores evidence-based preventive measures to mitigate its negative impacts.
State of Knowledge: Research reveals that prolonged blue light exposure delays sleep onset, shortens sleep duration, and impairs sleep efficiency by suppressing melatonin secretion. Disrupted circadian rhythms are linked to mood disorders, cognitive decline, and metabolic imbalances. Preventive strategies, including blue light-blocking glasses, screen filters, optimized lighting environments, and adherence to healthy screen-time habits, demonstrate effectiveness but require further validation in diverse populations.
Material and methods: This study employed a systematic literature review approach, comprising a comprehensive search across scientific databases such as PubMed and Google Scholar, followed by a screening process to identify relevant studies for further investigation.
Summary: Blue light exposure significantly influences circadian rhythms and sleep quality, with implications for mental and physical health. Preventive measures, when adopted consistently, offer promising solutions to mitigate adverse effects. Continued research is necessary to refine these strategies and ensure widespread applicability in an increasingly digital world.
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