IMPACT OF BLUE LIGHT EXPOSURE ON SLEEP QUALITY IN CHILDREN: A LITERATURE REVIEW

Abstract

Introduction: The exposure to blue light emitted by electronic devices has been associated with negative effects on sleep quality in children, compromising cognitive, emotional, and behavioral development. The suppression of melatonin caused by this light can delay sleep onset and reduce its quality, raising significant concerns in the digital age. Objective: This literature review aims to synthesize the current knowledge on the impact of blue light exposure on sleep quality in children. Methods: A systematic review of the literature published between 2009 and 2024 was conducted using the PubMed, Web of Science, Scopus, and Google Scholar databases. Original studies and reviews addressing the effects of blue light on children's sleep quality were included, totaling 20 relevant studies for detailed analysis. Results and Discussion: The review showed that blue light significantly suppresses melatonin production, leading to fragmented and shorter sleep. These effects impair children's cognitive and emotional performance and increase the risk of mental health disorders. Suggested interventions include limiting the use of electronic devices before bedtime, establishing consistent sleep routines, and educating parents about the risks of blue light exposure. Conclusion:This review reinforces the need for practical and educational strategies to mitigate the effects of blue light on children's sleep quality, promoting healthy development in an increasingly digital world.