Effect of occupational EMF exposure from radar at two different frequency bands on plasma melatonin and serotonin levels

Singh, Surendra Pal; Mani, Kumar Vyonkesh; Kapoor, Neeru

doi:10.3109/09553002.2015.1004466

Cited by 16 publications

(8 citation statements)

References 71 publications

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“…As discussed by Mortazavi et al, the first shortcoming in their study was due to this point that the authors only focused on the visible component of the electromagnetic radiation spectrum and ignored the reports which indicated a significant association between exposure to RF-EMFs of mobile or cordless phones and sleep problems [33,34]. It is worth noting that exposure to electromagnetic fields can also affect the level of plasma melatonin [35,36]. Moreover, in contrast with Oh et al, we paid attention to the confounding factor of the very low sensitivity of human eye to short wavelengths in the visible spectrum and controlled the light intensity.…”

Section: Discussionmentioning

confidence: 99%

Blocking Short-Wavelength Component of the Visible Light Emitted by Smartphones’ Screens Improves Human Sleep Quality

et al. 2018

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Background: It 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.Objectives: In 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 Methods: Volunteer 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.Results: The 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.Conclusion: The 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.

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Section: Discussionmentioning

confidence: 99%

Blocking Short-Wavelength Component of the Visible Light Emitted by Smartphones’ Screens Improves Human Sleep Quality

et al. 2018

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“…They are categorised as epidemiological studies because exposure to radar was not based on provocation. These studies investigated genotoxicity [149], oxidative stress [149], cognitive effects [150] and endocrine function [151]; the studies generally reported positive associations with radar. These volunteer studies did not sample from a defined population and are prone to bias [152].…”

Section: Epidemiological Studiesmentioning

confidence: 99%

5G mobile networks and health—a state-of-the-science review of the research into low-level RF fields above 6 GHz

Karipidis¹,

Mate²,

Urban³

et al. 2021

J Expo Sci Environ Epidemiol

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The increased use of radiofrequency (RF) fields above 6 GHz, particularly for the 5 G mobile phone network, has given rise to public concern about any possible adverse effects to human health. Public exposure to RF fields from 5 G and other sources is below the human exposure limits specified by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). This state-of-the science review examined the research into the biological and health effects of RF fields above 6 GHz at exposure levels below the ICNIRP occupational limits. The review included 107 experimental studies that investigated various bioeffects including genotoxicity, cell proliferation, gene expression, cell signalling, membrane function and other effects. Reported bioeffects were generally not independently replicated and the majority of the studies employed low quality methods of exposure assessment and control. Effects due to heating from high RF energy deposition cannot be excluded from many of the results. The review also included 31 epidemiological studies that investigated exposure to radar, which uses RF fields above 6 GHz similar to 5 G. The epidemiological studies showed little evidence of health effects including cancer at different sites, effects on reproduction and other diseases. This review showed no confirmed evidence that low-level RF fields above 6 GHz such as those used by the 5 G network are hazardous to human health. Future experimental studies should improve the experimental design with particular attention to dosimetry and temperature control. Future epidemiological studies should continue to monitor long-term health effects in the population related to wireless telecommunications.

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“…Les données in vivo et cliniques concernant les effets des radiofréquences sur la production de neurohormones sont parcellaires et divergentes (Masuda et al 2009, Aboul Ezz et al 2013, Maaroufi et al 2014, Eris et al 2015, Singh, Mani, and Kapoor 2015. À ce jour, on ne peut pas statuer sur un éventuel effet des radiofréquences sur la production des monoamines tant au niveau du cerveau qu'en périphérie.…”

Section: Modèles Et Personnes Non-ehsunclassified

Comments on Martin Pall, “Millimeter (MM) wave and microwave frequency radiation produce deeply penetrating effects: the biology and the physics”, Rev Environ Health 2021;37:247–58.

Foster

Balzano

2021

Reviews on Environmental Health

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Avis de l'Anses Saisine n° « 2011-SA-0150 » En complément des documents ainsi recensés, des contributions écrites ont été sollicitées auprès de médecins et sociologues, sur des aspects précis concernant l'expertise. De plus, des études ont fait l'objet de contrats de recherche et développement (CRD) avec le Centre scientifique et technique du bâtiment (CSTB) et l'unité mixte de recherche épidémiologique et de surveillance transport-travail-environnement (UMRESTTE, Ifsttar et Université Claude Bernard Lyon 1), afin d'obtenir de nouvelles données.En outre, compte tenu de la complexité du sujet, des limites méthodologiques de nombreux articles scientifiques, de l'absence d'études portant sur certaines questions, ainsi que des controverses qui résultent parfois de ces difficultés, le groupe de travail s'est également intéressé aux expériences de terrain. Il s'est ainsi penché, à travers une vingtaine d'auditions, sur les témoignages de différentes parties prenantes (médecins hospitaliers et médecins généralistes, associations et collectifs de citoyens, élus, chercheurs, etc.). Ces témoignages ont nourri les réflexions du groupe de travail et parfois proposé des hypothèses explicatives de l'EHS, qui ont ensuite été analysées au cours de l'expertise. Déroulement de l'expertiseEntre juillet 2014 et octobre 2017, le groupe de travail s'est réuni 29 fois en séances plénières afin, notamment, de procéder aux auditions, à l'analyse des articles et d'étudier et débattre de la plausibilité des différentes hypothèses avancées pour expliquer l'origine des troubles.La qualité des publications scientifiques (études cliniques et études épidémiologiques principalement) a été évaluée en s'appuyant sur différents critères (rigueur du protocole, caractérisation des expositions, etc.), quels que soient leurs résultats et conclusions.Les travaux d'expertise ont été présentés au CES à plusieurs reprises entre septembre 2014 et novembre 2017, tant sur les aspects méthodologiques que scientifiques. Les commentaires du CES ont été pris en compte par le groupe de travail tout au long de l'expertise.Celle-ci a été réalisée dans le respect de la norme NF X 50-110 « Qualité en expertise -Prescriptions générales de compétence pour une expertise (Mai 2003) ». Consultation publiqueConsidérant l'importance, la complexité et la sensibilité du sujet, l'Agence a souhaité porter le rapport « Hypersensibilité électromagnétique ou intolérance environnementale idiopathique attribuée aux champs électromagnétiques » dans un état pré-définitif, c'est-à-dire sans conclusion ni recommandation, à la connaissance des membres de la communauté scientifique et des parties prenantes intéressées au cours d'une consultation publique.Celle-ci a été ouverte du 27 juillet au 15 octobre 2016. Elle était destinée à recueillir des données et commentaires scientifiques susceptibles d'être pris en compte dans l'élaboration finale du rapport d'expertise. Au total, plus de 500 commentaires ont été déposés par l'intermédiaire d'un formulaire en ligne disponible sur le site inter...

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Effect of occupational EMF exposure from radar at two different frequency bands on plasma melatonin and serotonin levels

Abstract: The study showed the EMF ability to influence plasma melatonin and serotonin concentration in radar workers, significantly in 12.5-18 GHz range with service period greater than 10 years.

Cited by 16 publications

References 71 publications

Blocking Short-Wavelength Component of the Visible Light Emitted by Smartphones’ Screens Improves Human Sleep Quality

Blocking Short-Wavelength Component of the Visible Light Emitted by Smartphones’ Screens Improves Human Sleep Quality

5G mobile networks and health—a state-of-the-science review of the research into low-level RF fields above 6 GHz

Comments on Martin Pall, “Millimeter (MM) wave and microwave frequency radiation produce deeply penetrating effects: the biology and the physics”, Rev Environ Health 2021;37:247–58.

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