2020
DOI: 10.1080/07420528.2020.1781149
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Blue light emission spectra of popular mobile devices: The extent of user protection against melatonin suppression by built-in screen technology and light filtering software systems

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Cited by 22 publications
(14 citation statements)
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“…This adjusts the sleep-wake cycle with a resultant increase in stresses, depression and negative emotions [31]. Our observation that students reported changes in sleep pattern and increases in screen use may make the explanations proffered by prior studies applicable to our study findings [31][32][33]. Studies conducted before the pandemic indicated that changes in sleep pattern increase as age increase [34][35][36], contradicting the findings of this study.…”
Section: Plos Onecontrasting
confidence: 84%
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“…This adjusts the sleep-wake cycle with a resultant increase in stresses, depression and negative emotions [31]. Our observation that students reported changes in sleep pattern and increases in screen use may make the explanations proffered by prior studies applicable to our study findings [31][32][33]. Studies conducted before the pandemic indicated that changes in sleep pattern increase as age increase [34][35][36], contradicting the findings of this study.…”
Section: Plos Onecontrasting
confidence: 84%
“…A significant deterioration in sleep quality of students during the pandemic may be due to late night browsing on social media, chatting, and checking online news from mobile devices [31] as well as the increased use of screens for educational purposes, which is also associated with late night use of electronic devices [20]. The significant increase in exposure to screens may lead to longer waking hours and reduce sleep duration as a result of blue light emitted from mobile screens, inhibiting melatonin production [32,33]. This adjusts the sleep-wake cycle with a resultant increase in stresses, depression and negative emotions [31].…”
Section: Plos Onementioning
confidence: 99%
“…Excessive screen time seems to have a detrimental effect on health, affecting sleep patterns. This is due to the suppression of melatonin production, which helps induce sleep through the blue light emitted by screens of appliances when used at night (Calvo-Sanz & Tapia-Ayuga, 2020;Christensen et al, 2016). Exposure to blue light before bedtime is associated with sleep inefficiency and reduced sleep duration (Vallance et al, 2015).…”
Section: Discussionmentioning
confidence: 99%
“…Esse dado pode explicar o fato de os adolescentes possuírem menos habilidades em controlar o entusiasmo por algo que lhes desperta interesse, estando mais vulneráveis ao uso patológico da internet (Ha et al, 2007;Terroso & de Lima Argimon, 2016). É importante destacar que as repercussões negativas sobre sono, devido ao uso das mídias digitais, vistas na presente pesquisa, acontecem também devido a emissão de luz azul dos celulares, tablets e notebooks, visto que a luminosidade suprime a produção da melatonina que regula o ritmo circadiano (Jniene et al, 2019;Calvo-Sanz e Tapia-Ayuga (2020). Por isso, contribuem para alterar a arquitetura do sono, desregulando o ritmo circadiano e trazendo as consequências de um sono de má qualidade, como a sonolência diurna excessiva, mau humor, ansiedade, depressão, sedentarismo, alimentação não saudável, obesidade, além de aumento de dores musculoesqueléticas, bruxismo e problemas oftalmológicos (Anjos et al, 2020;Perensin, Tieri, Marques, Godinho, & Carpanez, 2020;Del Ciampo, Louro, Del Ciampo, & Ferraz, 2017;Guedes, Desiderá & Gonçalves, 2018;Felden et al, 2016).…”
Section: Discussionunclassified
“…A melatonina, neuro-hormônio produzido pela glândula pineal, é responsável pela indução e manutenção do sono, e regula o ritmo circadiano, ciclo que possui a duração de 24 horas, período no qual se desempenham as atividades diárias e noturnas (Jniene et al, 2019;Calvo-Sanz & Tapia-Ayuga, 2020;Glanzmann, Moreira, de Almeida Marques, Silva, & Soares, 2019;Lira & Custodio, 2018).…”
Section: Introductionunclassified