Ghatei N et al. · 2017
Researchers exposed pregnant mice and their offspring to cell phone radiation at 900 and 1800 MHz frequencies, then examined how this affected genes related to cell death and DNA repair in the brain's cerebellum. They found that the radiation did not trigger cell death pathways but did alter expression of genes involved in DNA repair. The authors concluded that while cell phone radiation may cause some cellular changes, the brain appears capable of repairing any damage through normal cellular mechanisms.
Choi KH et al. · 2017
Researchers followed 1,198 mother-child pairs to examine whether mobile phone use during pregnancy affects children's brain development in their first three years. While they found no direct link between prenatal phone use and developmental delays, children whose mothers had both high lead exposure and heavy phone use showed increased risk of developmental problems. This suggests that RF radiation might amplify the harmful effects of other toxins during pregnancy.
Andrianome S et al. · 2017
French researchers studied whether people who report electromagnetic hypersensitivity (EHS) have different nervous system responses compared to healthy controls, and whether exposure to common wireless signals affects their autonomic nervous system. They measured heart rate variability and skin conductance in 30 EHS individuals and 25 controls, then exposed 10 EHS participants to GSM, DECT, and Wi-Fi signals at environmental levels (1 V/m). The study found no significant differences in nervous system responses between EHS and control groups, and no measurable effects from the wireless exposures.
Villarini M et al. · 2017
Italian researchers exposed brain cancer cells (neuroblastoma) to 50 Hz magnetic fields and aluminum compounds, both separately and together, to see if they would cause DNA damage. After exposing the cells to magnetic field levels ranging from 0.01 to 1 mT for up to 5 hours, they found no DNA damage, no changes in cellular stress markers, or any harmful synergistic effects when the exposures were combined. This suggests that short-term exposure to these power-frequency magnetic fields, even in combination with aluminum, does not appear to damage DNA in these particular brain cell types.
Zhang J, Sumich A, Wang GY. · 2017
Researchers reviewed recent brain imaging and brain wave studies to examine whether mobile phone radiation affects brain function. They found that phone radiation appears to increase brain activity and efficiency, particularly in areas near where you hold the phone, and this increased activity was linked to faster reaction times and sleep disruption. The findings suggest the scientific question of mobile phone effects on the brain should be reopened, though the researchers note that long-term effects remain largely unstudied.
Yang M et al. · 2017
Researchers analyzed 11 studies involving over 17,000 people to examine whether cell phone use increases brain tumor risk. They found that using a phone for 10 or more years increased the odds of developing glioma (a type of brain tumor) by 44%, with the strongest association for tumors on the same side of the head where people held their phone. The risk was particularly high for low-grade gliomas, which more than doubled with long-term use.
Wang J, Su H, Xie W, Yu S. · 2017
Researchers analyzed seven studies involving thousands of people to determine whether mobile phone use increases headache risk. They found that mobile phone users were 38% more likely to experience headaches compared to non-users, with risk increasing dramatically based on daily call duration and frequency. The study shows a clear dose-response relationship: people making calls longer than 15 minutes daily had 2.5 times higher headache risk than those using phones less than 2 minutes daily.
Sharma A, Kesari KK, Saxena VK, Sisodia R · 2017
Researchers exposed young mice to 10 GHz microwave radiation (similar to frequencies used in radar and some wireless communications) for 2 hours daily over 15 days. The exposed mice showed impaired spatial memory, brain tissue damage, and disrupted brain chemistry both immediately after exposure and weeks later. This suggests that developing brains may be particularly vulnerable to microwave radiation effects that persist even after exposure ends.
Sato Y, Kojimahara N, Taki M, Yamaguchi N · 2017
Japanese researchers surveyed over 4,000 children and adults to understand which ear people prefer when using mobile phones. They found that children typically use their dominant hand's ear, while adults show more complex patterns - with older adults and heavy work users more likely to use their left ear. This matters because knowing which ear gets more radiation exposure helps researchers design better studies on mobile phone health effects.
Othman H, Ammari M, Sakly M, Abdelmelek H · 2017
Researchers exposed pregnant rats to 2.45GHz WiFi signals (the same frequency used by most home routers) for 2 hours daily throughout pregnancy, then tested their offspring for developmental and behavioral changes. They found that prenatal WiFi exposure altered physical development and caused anxiety, motor problems, and learning difficulties in the young rats, with effects being more severe when combined with maternal stress. The study also revealed oxidative stress (cellular damage) in the brains of exposed offspring.
Lee AK, Hong SE, Kwon JH, Choi HD, Cardis E. · 2017
Researchers analyzed how different types of mobile phones expose the brain to electromagnetic radiation by calculating specific absorption rates (SAR) for 11 phone models representing 86% of phones sold in Korea since 2002. They found that phone design, antenna type, and user age significantly affect how much radiation the brain absorbs, with variations depending on whether phones had internal or external antennas. This research helps us understand why some phones may pose greater exposure risks than others.
Ibitayo AO et al. · 2017
Researchers exposed young male rats to Wi-Fi radiation at 2.5 GHz for 30, 45, and 60 days to study brain effects. They found DNA damage and vascular congestion (blood vessel swelling) in the brain tissue that worsened with longer exposure periods. This suggests that everyday Wi-Fi exposure may cause cumulative damage to brain cells and blood vessels over time.
Hassanshahi A et al. · 2017
Researchers exposed 80 male rats to Wi-Fi radiation (2.4 GHz) for 12 hours daily over 30 days, then tested their ability to recognize new versus familiar objects using sight, touch, and combined senses. The Wi-Fi-exposed rats lost their ability to distinguish between new and familiar objects in all tests, while also showing increased expression of certain brain receptors in the hippocampus (the brain's memory center). This suggests that chronic Wi-Fi exposure may impair how the brain processes and integrates sensory information.
Hardell L, Carlberg M. · 2017
Swedish researchers analyzed brain tumor rates from 1998-2015 using two national health databases and found a concerning pattern: brain tumor rates increased by 2.06% annually overall, with the steepest increase of 4.24% per year after 2007. The 20-39 age group showed the highest increases, coinciding with widespread mobile phone adoption, and the researchers discovered that many brain tumors are likely being underreported to cancer registries.
Gökçek-Saraç Ç et al. · 2017
Researchers exposed rats to cell phone radiation at 900 MHz and 2100 MHz frequencies for either 1 week or 10 weeks, then examined changes in brain enzymes involved in memory and learning. They found that longer exposure (10 weeks) caused more significant changes than shorter exposure (1 week), and that 2100 MHz radiation (used by 3G networks) had stronger effects than 900 MHz radiation (used by 2G networks). This suggests that both the duration of exposure and the specific frequency matter when it comes to how wireless radiation affects the brain.
Eghlidospour M, Ghanbari A, Mortazavi SMJ, Azari H. · 2017
Iranian researchers exposed neural stem cells (brain cells that can develop into neurons) to radiation from a GSM 900-MHz mobile phone for different time periods. They found that longer exposures significantly reduced the cells' ability to multiply and form new neurons, though the cells didn't die. This suggests that cell phone radiation may interfere with the brain's natural ability to generate new brain cells, a process crucial for learning, memory, and brain repair.
Durusoy R, Hassoy H, Özkurt A, Karababa AO. · 2017
Turkish researchers surveyed 2,150 high school students about their mobile phone use and measured electromagnetic field levels in their schools. Students who used mobile phones were 90% more likely to experience headaches, 78% more likely to report fatigue, and 53% more likely to have sleep problems compared to non-users. The study found clear dose-response relationships, meaning heavier phone use correlated with more frequent symptoms.
Carlberg M, Hardell L. · 2017
Researchers used a rigorous scientific framework to evaluate whether mobile and cordless phone use causes brain tumors called gliomas. They found that people with the highest phone use had a 90% increased risk of developing gliomas, with risk doubling for those using wireless phones for 20+ years. The study concluded that radiofrequency radiation from phones should be classified as a human carcinogen.
Birks L et al. · 2017
Researchers analyzed data from 83,884 mother-child pairs across five countries to examine whether cell phone use during pregnancy affects children's behavior. They found that mothers who used cell phones more frequently during pregnancy were more likely to have children with hyperactivity and attention problems by ages 5-7. The study suggests prenatal EMF exposure may influence brain development, though the researchers acknowledge other factors could explain these connections.
Bhatt CR et al. · 2017
Australian researchers followed 412 primary school children for up to 3 years to see if using mobile phones and cordless phones affected their thinking abilities. They found mixed results - increased mobile phone use was linked to some changes in cognitive performance, including faster response times on some tasks but slower response times on others. The researchers concluded there was limited evidence that phone use significantly impacts children's cognitive function.
Aslan A, İkinci A, Baş O, Sönmez OF, Kaya H, Odacı E. · 2017
Researchers exposed young rats to 900 MHz radiofrequency radiation (similar to cell phone frequencies) for one hour daily during adolescence and examined their brain tissue. They found significant damage to the cerebellum, including fewer Purkinje cells (critical neurons for movement and coordination) and abnormal cell arrangement in exposed animals compared to unexposed controls. This suggests that even brief daily EMF exposure during brain development may cause lasting neurological damage.
Altuntas G et al. · 2017
Researchers exposed 30 emergency physicians to cell phone radiation (900-1800 MHz) for 15 minutes and tested their attention and concentration using standardized cognitive tests. Surprisingly, doctors exposed to the radiation actually performed better on selective attention tasks compared to those holding phones that were turned off. The study suggests short-term cell phone radiation exposure may temporarily enhance certain cognitive functions rather than impair them.
Zheng Y, Ma W, Dong L, Dou JR, Gao Y, Xue J. · 2017
Researchers tested how extremely low frequency electromagnetic fields (ELF-EMF) affect brain cells from rats in laboratory conditions. They found that these magnetic fields directly activated specific electrical channels in hippocampus neurons (brain cells involved in memory and learning). This research helps explain how ELF-EMF exposure can influence brain cell activity at the cellular level.
Zhen J, Qian Y, Fu J, Su R, An H, Wang W , Zheng Y, Wang X. · 2017
Researchers tested deep brain magnetic stimulation (a targeted magnetic field therapy) on mice genetically engineered to develop Alzheimer's disease. They found that the magnetic treatment improved the mice's learning and memory, promoted growth of new brain cells in the memory center, and restored important brain chemicals needed for cognitive function. This suggests magnetic field therapy might help protect against Alzheimer's-related brain damage.
Sakhaie MH et al. · 2017
Researchers exposed mice with brain injury to extremely low-frequency electromagnetic fields (ELF-EMF) and found the exposure enhanced spatial memory and learning abilities. The EMF exposure also increased the production of new brain cells (neurogenesis) in the hippocampus, the brain region crucial for memory formation. This suggests ELF-EMF might have therapeutic potential for treating neurodegenerative conditions by promoting brain cell regeneration.
