ArticleJournal of biomedical physics & engineering2018
Blocking Short-Wavelength Component of the Visible Light Emitted by Smartphones' Screens Improves Human Sleep Quality.
Article in Journal of biomedical physics & engineering, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed.
- Analysis of sleep quality and its influencing factors among residents in Chengguan District of Lhasa.BMC public health · 2026Article
- The role of FoMO and nomophobia in explaining the relationship between doomscrolling and poor sleep quality.BMC psychology · 2025Article
- The Influence of Mobile Technologies on the Quality of Sleep.Journal of biomedical physics & engineering · 2025Article
- Electronic Screen Use and Sleep Duration and Timing in Adults.JAMA network open · 2025Article
- Novel perspective of 'poor sleep' in public health: a narrative review.BMJ public health · 2024Review
- Blue Light and Digital Screens Revisited: A New Look at Blue Light from the Vision Quality, Circadian Rhythm and Cognitive Functions Perspective.Journal of biomedical physics & engineering · 2024Review
- Nighttime Outdoor Artificial Light and Risk of Age-Related Macular Degeneration.JAMA network open · 2024Article
- Effects of evening smartphone use on sleep and declarative memory consolidation in male adolescents and young adults.Brain communications · 2024Article
- The Links Among Cumulative Ecological Risk and Smartphone Addiction, Sleep Quality in Chinese University Freshmen: A Two-Wave Study.Psychology research and behavior management · 2024Article
- Outdoor artificial light at night, air pollution, and risk of childhood acute lymphoblastic leukemia in the California Linkage Study of Early-Onset Cancers.Scientific reports · 2023Article
- Precocious puberty under stressful conditions: new understanding and insights from the lessons learnt from international adoptions and the COVID-19 pandemic.Frontiers in endocrinology · 2023Review
- Zhong et al. Respond to "There's No Place Like Home".American journal of epidemiology · 2022Article
- Analysis of the Incidence and Risk Factors of Precocious Puberty in Girls during the COVID-19 Pandemic.International journal of endocrinology · 2022Article
- Association between the pattern of mobile phone use and sleep quality in Northeast China college students.Sleep & breathing = Schlaf & Atmung · 2021Article
- Fear of missing out: A brief overview of origin, theoretical underpinnings and relationship with mental health.World journal of clinical cases · 2021Review
- A comprehensive topical antioxidant inhibits oxidative stress induced by blue light exposure and cigarette smoke in human skin tissue.Journal of cosmetic dermatology · 2021Article
- Preliminary Results: The Impact of Smartphone Use and Short-Wavelength Light during the Evening on Circadian Rhythm, Sleep and Alertness.Clocks & sleep · 2021Article
- The Association Between Smartphone Use and Breast Cancer Risk Among Taiwanese Women: A Case-Control Study [Response to Letter].Cancer management and research · 2021Article
- Outdoor artificial light at night and risk of non-Hodgkin lymphoma among women in the California Teachers Study cohort.Cancer epidemiology · 2020Article
- Effects of Mobile Use on Subjective Sleep Quality.Nature and science of sleep · 2020Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIt has been shown that short-wavelength blue component of the visible light spectrum can alter the circadian rhythm and suppress the level of melatonin hormone. The short-wavelength light emitted by smartphones' screens can affect the sleep quality of the people who use these devices at night through suppression of melatonin.
objectivesIn this study, we examined the effects of covering the screens of smartphones with different filters (changing the effective wavelength of the light) on sleep delay time in 43 healthy students. MATERIALS AND
methodsVolunteer students were asked to go to bed at 23:00 and to use their mobile phones in bed for watching a natural life documentary movie for 60 minutes. No filter was used for one night while amber and blue filters were used for other 2 nights. Photospectrometry method was used to determine the output spectrum of the light passing through the filters used for covering the screens of the mobile phones. The order for utilizing amber or blue filters or using no filter was selected randomly. After 1 hour, the participants were asked to record their sleep delay time measured by a modified form of sleep time record sheet.
resultsThe mean sleep delay time for the "no-filter" night was 20.84±9.15 minutes, while the sleep delay times for the nights with amber and blue filters were 15.26±1.04 and 26.33±1.59 minutes, respectively.
conclusionThe findings obtained in this study support this hypothesis that blue light possibly suppresses the secretion of melatonin more than the longer wavelengths of the visible light spectrum. Using amber filter in this study significantly improved the sleep quality. Altogether, these findings lead us to this conclusion that blocking the short-wavelength component of the light emitted by smartphones' screens improves human sleep.
Indexed as
Identifiers
30568927PMC6280115What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.