Archive
37 postsDetermining the relationship between mobile phone network signal strength and RF-EMF exposure: protocol and pilot study to derive conversion functions
This protocol and pilot study evaluated whether smartphone signal strength indicators can be converted into RF-EMF exposure estimates using derived formulas and regression models. The study reports a positive log-linear association between LTE RSSI and far-field (base station) exposure aggregated by location, while handset-related exposure at the ear and chest during data transmission showed negative log-linear trends with improving signal quality. The authors conclude the ETAIN 5G-Scientist app may support large-scale RF-EMF exposure assessment, but emphasize the need for more data to improve accuracy and address uncertainties in individual measurements.
Possible effects of RF EMR on contextual fear conditioning, hippocampal perivascular space, apoptosis and adrenal gland microarchitecture in rats
This animal study exposed male Wistar rats to 900 MHz RF-EMR from a mobile phone for 1 hour daily over four weeks and assessed behavior and tissue changes. The authors report altered contextual fear conditioning-related behavior in exposed rats. Histological assessments indicated apoptosis and enlarged perivascular space in the hippocampal CA3 region and apoptotic/inflammatory-like changes in the adrenal zona fasciculata, with no reported differences in adrenal medulla cytoarchitecture.
The effects of radiofrequency radiation on male reproductive health and potential mechanisms (Review)
This narrative review summarizes human and animal research on radiofrequency (RF) radiation exposure (e.g., mobile phones, Wi‑Fi, occupational sources) and male reproductive outcomes. It reports that the literature links RF exposure with reduced sperm quality and increased DNA damage, often alongside oxidative stress and other proposed biological changes. Although inconsistencies are acknowledged, the authors conclude the overall evidence suggests harmful associations and call for standardized, long-term studies and reconsideration of guidelines.
Use of Mobile and Cordless Phones and the Association with Prostate Cancer
This pooled analysis of two prior human studies reports increased odds of prostate cancer associated with mobile phone use, with higher estimates for longer latency and higher cumulative hours. Cordless phone use is reported to show increased risk but not statistically significant overall, with one mid-range cumulative use category showing an elevated OR. The abstract also reports higher risks among men with more aggressive prostate cancer and among those with a family history of prostate cancer.
The Impact of Mobile Phone Electromagnetic Waves on the Neurons and Blood Brain Barrier Integrity in the Chick Embryo
This animal study exposed chick embryos to electromagnetic waves from a mobile phone and compared them with unexposed controls. Electron microscopy on days 10 and 15 reported neuronal and cerebellar cellular alterations in the exposed group, including features described as apoptosis and mitochondrial swelling. The authors also report compromised blood-brain barrier integrity and conclude the exposure adversely affects brain development.
Role of radio-frequency electromagnetic waves in causing oxidative stress
This animal study exposed fertilized chick eggs to a nearby 1800 MHz mobile phone that was called repeatedly (50 minutes/day) and assessed embryos at days 10 and 15. The exposed group reportedly showed mitochondrial abnormalities in liver, brain, and heart tissues on electron microscopy, along with increased HSP70 in cardiomyocytes and hepatocytes. The authors conclude that radio-frequency electromagnetic waves can induce oxidative stress and mitochondrial damage in developing embryos.
A Decision Support System for Managing Health Symptoms of Living Near Mobile Phone Base Stations
This analytical study evaluated machine learning models (SVM and Random Forest) to predict health symptoms in adults living near mobile phone base stations. The SVM model reportedly achieved high predictive performance for headache, sleep disturbance, dizziness, vertigo, and fatigue, and outperformed Random Forest and prior models. The abstract concludes that proximity to base stations is connected with increased prevalence of several symptoms and emphasizes distance, age, and duration of residence as key predictors.
Effect of Exposure to 900 MHz GSM Mobile Phone Radiofrequency Radiation on Estrogen Receptor Methylation Status in Colon Cells of Male Sprague Dawley Rats
This animal study exposed male Sprague-Dawley rats to 900 MHz GSM mobile phone RF radiation for 4 hours and assessed ERα promoter methylation in colon tissue. The authors report altered ERα methylation patterns versus controls after RF exposure. They also report no radioadaptive response in ERα methylation following a subsequent 3 Gy Co-60 gamma challenge.
Microwave frequency electromagnetic fields (EMFs) produce widespread neuropsychiatric effects including depression
This 2016 narrative review proposes that non-thermal microwave/lower-frequency EMFs act primarily through activation of voltage-gated calcium channels (VGCCs), with calcium channel blockers reported to block EMF effects. It summarizes animal, occupational, and epidemiological literature and reports that exposures from base stations, heavy mobile phone use, and wireless smart meters are associated with neuropsychiatric symptoms, sometimes with doseresponse patterns. The author concludes that multiple lines of evidence collectively support that non-thermal microwave EMF exposures can produce diverse neuropsychiatric effects including depression.
The effects of microwave emitted by cellular phones on ovarian follicles in rats
This animal study examined whether prenatal exposure to mobile phone microwaves affects ovarian development in rats. Pregnant rats were exposed to a phone placed under the cage throughout pregnancy, with mostly standby exposure and brief periodic speech-mode exposure. Female pups assessed at 21 days had fewer ovarian follicles in the exposed group than in controls, which the authors interpret as a toxic effect on ovaries.
Biological effects from electromagnetic field exposure and public exposure standards
This review describes public concerns and scientific reports of non-thermal biological effects from low-intensity ELF and RF exposures. It lists multiple health endpoints reported to be associated with ELF and/or RF and highlights the BioInitiative Report’s conclusion that a reasonable suspicion of risk exists at environmentally relevant levels. The authors argue that existing public exposure standards should be lowered and that mobile phone SAR guidelines should be revised based on biology and long-term risk claims.
Mobile phone use and cancer
This narrative review discusses potential public health consequences of widespread mobile phone use and the controversy around long-term cancer risks. It states that evidence from epidemiological and experimental studies suggests long-term exposure to mobile phone emissions may be linked to a small to moderate increased risk of certain cancers, while also emphasizing that data are insufficient for a final risk assessment. The author argues that even small risks could matter at the population level and that exposure-reduction measures may be indicated given uncertainties.