Impact of Blue Light on Circadian Cycle Functions and Its Possible Alterations
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Abstract
The regulation of the circadian cycle, an essential process for the functioning of living organisms, including humans, is highly dependent on exposure to external light, directly influencing the sleep cycle. However, increasing exposure to artificial light from digital devices such as televisions, cell phones and computers, especially during nighttime hours, has raised concerns about its impact on the circadian cycle. This prolonged exposure alters external stimuli and, in turn, affects the production of internal chemical messengers, which can lead to metabolic, hormonal, immunological, mental and physical disorders in individuals. These findings underscore the importance of understanding the negative effects of blue light and developing strategies to counteract its impacts on human health and well-being.
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