Delen K et al. · 2021
Turkish researchers exposed male rats to 2,600 MHz radiofrequency radiation (similar to 4G/5G frequencies) for 30 minutes daily over 30 days and found significant brain damage including reduced antioxidant levels and increased cell death. The study also tested whether melatonin supplements could protect against this damage, finding that high-dose melatonin reduced many of the harmful effects.
Dalecki A, Verrender A, · 2021
This study examined how methodological factors influence the detection of radiofrequency electromagnetic field (RF-EMF) effects on EEG alpha power in 36 adults exposed to sham, low, and high RF-EMF conditions. The researchers found that alpha power increases were greater during eyes-open versus eyes-closed EEG recordings and showed a trend toward larger increases later in the exposure period, suggesting that previous studies using eyes-closed conditions or shorter exposure durations may have failed to detect RF-EMF effects.
Unknown authors · 2021
European researchers studied over 3,200 children and teens to measure radiofrequency radiation doses to their brains from phones, tablets, and other wireless devices. They found that higher brain radiation exposure was linked to lower non-verbal intelligence scores in 9-11 year olds. The effect was small but consistent across multiple countries.
Unknown authors · 2021
Researchers exposed 30 young men to Wi-Fi radiation (2.45 GHz) all night while they slept to test effects on memory formation. Surprisingly, participants performed slightly better on word memory tasks after Wi-Fi exposure, though brain activity measurements showed no changes. The authors suggest this unexpected finding may be random rather than meaningful.
Unknown authors · 2021
This Turkish study exposed pregnant and young rats to 1800 MHz electromagnetic waves from mobile phones (at levels similar to human exposure) for two hours daily. Rats exposed during development showed significant brain damage, including neuronal death in the cortex and hippocampus, nerve damage, and markers of oxidative stress. The damage was worse when phones were in talk mode compared to standby mode.
Zhao X et al. · 2021
Researchers exposed mouse brain cells to terahertz frequency electromagnetic radiation in laboratory dishes and observed increased activity in synapses (connections between nerve cells) and changes in cells that produce myelin, the protective coating around nerves. The terahertz waves altered gene expression in these cells and affected their development and function. This study demonstrates that even lesser-studied frequencies in the electromagnetic spectrum can significantly influence nervous system cell behavior.
Zeni O, Romeo S, Sannino A, Palumbo R, Scarfì MR · 2021
Italian researchers exposed brain cancer cells to 1950 MHz radiofrequency radiation and found it actually reduced DNA damage from a toxic chemical, both in directly exposed cells and in nearby unexposed cells through a 'bystander effect.' The study suggests RF radiation may trigger protective cellular responses involving heat shock proteins.
Unknown authors · 2021
Researchers exposed mice to mobile phone radiation for different daily durations over 30 days and measured changes in brain genes that control cell death. They found that radiation exposure altered the balance of Bax and Bcl2 genes in the hippocampus (the brain's memory center), with longer exposures showing the most dramatic shifts toward cell death pathways. This suggests mobile phone radiation can disrupt normal brain cell survival mechanisms.
Qin F, Cao H, Feng C, Zhu T, Zhu B, Zhang J, Tong J, Pei H · 2021
This study exposed four-week-old mice to 1800 MHz radiofrequency fields for three weeks during morning and evening periods to investigate effects on testicular development. The exposure resulted in decreased testicular weight, sperm production, and testosterone levels, along with dysregulation of long non-coding RNA expression, with morning exposure affecting 615 lncRNAs compared to 183 for evening exposure.
Unknown authors · 2021
Researchers exposed pregnant mice to 900 MHz cell phone radiation for 8 hours daily over 10 days and found significant increases in oxidative stress markers in their blood. The study showed that vitamin C supplementation could prevent this radiation-induced cellular damage, suggesting antioxidants may offer protection against EMF exposure during pregnancy.
Li M et al. · 2021
Researchers found that combining radiofrequency ablation (a common cancer treatment) with melatonin supplementation significantly improved outcomes for early lung cancer patients with multiple tumors. The combination not only removed treated tumors but also activated the immune system's natural killer cells to attack untreated tumors elsewhere in the lungs. This approach worked by reprogramming cancer metabolism and reducing tumor malignancy without additional invasive procedures.
Unknown authors · 2021
Researchers exposed blood cells from 5 men to 900 MHz cell phone frequency radiation for up to 90 minutes, analyzing changes in 667 microRNAs that regulate gene expression. While they initially found 2 microRNAs that appeared to respond to EMF exposure, these changes could not be reproduced when the experiment was repeated 2 years later. The study found no consistent evidence that brief 900 MHz exposure alters microRNA expression in human blood cells.
Kundu A et al. · 2021
This study examined molecular responses in rice plants following a single 2.5-hour exposure to 1837.50 MHz electromagnetic radiation at 2.75 mW/m². The researchers found significant upregulation of calmodulin and phytochrome B gene expressions when measured immediately after exposure.
Kumar, R , Deshmukh, P.S. , Sharma, S., Banerjee, B.D. · 2021
Researchers exposed rats to common mobile phone frequencies (900 MHz, 1800 MHz, and 2450 MHz) for 2 hours daily over 1, 3, and 6 months, finding significant epigenetic changes in the hippocampus, the brain region critical for memory and learning. DNA methylation decreased while histone methylation increased, alterations that directly affect gene expression. The changes worsened with higher frequencies and longer exposure durations, providing biological evidence that chronic wireless radiation exposure can modify how genes function in the brain.
Kim JH et al. · 2021
This study examined the effects of long-term evolution (LTE) radiofrequency electromagnetic fields (1760 MHz at 4 W/kg SAR) on neuroblastoma cell proliferation in SH-SY5Y cells. The researchers found that RF-EMF exposure decreased cell growth and proliferation by inducing cellular senescence through the Akt/mTOR pathway, which activated p53 and its downstream CDK inhibitors, ultimately delaying the cell cycle without causing DNA damage or apoptosis.
Kim HS, H-D Choi , J-K Pack, N Kim, Y H Ahn · 2021
Researchers exposed pregnant rats to radiofrequency electromagnetic field (RF-EMF) radiation at 4 W/kg for 8 hours daily throughout pregnancy. The exposure significantly elevated maternal stress hormone (cortisol) levels in blood and adrenal glands, but the placenta appeared to maintain its protective barrier function, keeping fetal cortisol exposure stable. This suggests pregnant animals may experience systemic stress responses to RF-EMF even when the placenta provides some protection to the developing fetus.
Unknown authors · 2021
Researchers exposed pregnant rats to 900-MHz electromagnetic fields (typical cell phone frequency) for one hour daily during late pregnancy and examined the offspring's spinal cords at one month old. The exposed pups showed significant structural damage, including degenerated motor neurons, enlarged central canals, and altered ependymal cells, along with reduced levels of H3K27me3, an epigenetic marker essential for neural stem cell maintenance. This study provides evidence that prenatal EMF exposure can cause lasting structural and molecular changes in the developing nervous system.
Jin H et al. · 2021
This study examined whether long-term evolution (LTE) radiofrequency electromagnetic field (EMF) exposure affects DNA damage in skin cells and mouse models. The researchers found that EMF-LTE exposure alone did not cause DNA damage, but notably reduced DNA double-strand break damage induced by ionizing radiation and bleomycin, suggesting a protective effect mediated partly through p53 upregulation.
Unknown authors · 2021
Turkish researchers exposed fruit fly larvae to cell phone radiation at 900 MHz, 1800 MHz, and 2100 MHz frequencies for varying durations and found statistically significant increases in genetic mutations compared to unexposed controls. The study used fruit flies because their genes are remarkably similar to human disease genes. This research adds to evidence that radiofrequency radiation from mobile phones and base stations can cause DNA-level damage in living organisms.
Unknown authors · 2021
Researchers exposed rats to 2.1 GHz radiofrequency radiation (similar to 3G cell towers) at two different intensities for one week. Higher exposure levels (65 V/m) significantly impaired the rats' spatial memory and learning abilities, while also reducing key brain chemicals needed for memory formation in the hippocampus.
Ghandehari M, Sadri D, Farhadi S · 2021
Iranian researchers examined 100 people's cheek cells and found that heavier cell phone users had significantly more micronuclei - tiny fragments that indicate DNA damage. The study showed a strong correlation (r = 0.70) between daily phone usage and cellular damage markers in mouth tissue.
D'Silva MH, Swer RT, Anbalagan J, Bhargavan R · 2021
Researchers exposed developing chick embryos to 2G and 3G cell phone radiation for 72 minutes daily, then examined their brain tissue for DNA damage. Both types of radiation caused significant DNA damage, with 3G radiation producing more severe effects than 2G. This study provides direct evidence that cell phone radiation can harm developing brain tissue at the genetic level.
Unknown authors · 2021
Researchers exposed rats to cell phone radiation at 1800 MHz and 2100 MHz frequencies for 2 hours daily over 7 months. Both frequencies caused significant liver damage, including DNA breaks and increased oxidative stress markers. The study demonstrates that even low-intensity microwave radiation can harm liver tissue through cellular damage mechanisms.
Yavaş MC, Yegin K, Oruç S, Delen K, Sirav B · 2021
This study investigated the effects of 14 days of daily GSM-like RF-EMF exposure (2100 MHz, 5 hours/day) on thiol/disulphide homeostasis and oxidant-antioxidant status in rat serum. The results showed increases in total thiol, native thiol, and disulphide levels, as well as in total antioxidant status, total oxidant status, and oxidative stress index in the exposed group compared to controls, but these differences were not statistically significant.
Xie W et al. · 2021
Chinese researchers exposed mouse bone marrow stem cells to 900 MHz radiofrequency radiation (the same frequency used by many cell phones) for 4 hours daily over 5 days. The radiation triggered a cellular stress response in the mitochondria (the cell's powerhouses), causing them to produce stress proteins and reactive oxygen species, though cells appeared to recover within 24 hours.
