Browse 8,700 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 2,764 studies in Brain & Nervous System
Unknown authors · 2014
Italian researchers validated a physician-administered version of a standardized smell test on 138 healthy subjects. The study established baseline smell identification scores for the Italian population. This research provides important reference data for detecting smell disorders in clinical practice.
Unknown authors · 2014
Iranian researchers tested 60 elementary school children (ages 8-10) on reaction time and memory tasks after 10-minute mobile phone exposures versus sham exposures. While reaction times showed no significant difference, children performed better on short-term memory tests after real phone exposure compared to fake exposure. This unexpected finding suggests RF radiation may temporarily enhance certain cognitive functions in developing brains.
Unknown authors · 2014
Researchers exposed rats to 900 MHz electromagnetic fields (similar to cell phone frequencies) and tested their learning abilities and brain chemistry. The EMF-exposed rats showed problems with object exploration tasks and altered brain chemistry, particularly affecting dopamine and serotonin levels in the hippocampus. Combining EMF with iron overload didn't worsen the effects, suggesting the radiation alone was responsible for the cognitive changes.
Unknown authors · 2014
This study describes the Consortium for Reliability and Reproducibility (CoRR), which collected brain scan data from 1,629 people across 18 international sites to establish standards for brain connectivity research. The researchers found that current brain imaging studies vary too much in methods to draw reliable conclusions. This database aims to help scientists develop more consistent ways to measure how individual brains function differently.
Unknown authors · 2014
French researchers exposed rats to 900 MHz cell phone radiation (with and without iron overload) and tested their spatial learning abilities. The EMF-exposed rats showed impaired object exploration and altered brain chemistry, particularly in the hippocampus, but performed normally on navigation and memory tasks. Adding iron overload didn't worsen the effects.
Unknown authors · 2014
Chinese researchers exposed nerve cells (PC12 cells) to 50 Hz magnetic fields at power line frequency combined with magnetic nanoparticles for 48 hours. They found that while magnetic nanoparticles alone reduced cell survival, the combination with magnetic fields dramatically increased cell death and programmed cell death (apoptosis). This suggests magnetic fields can amplify the harmful effects of magnetic particles already present in cells.
Unknown authors · 2014
Researchers exposed human bone marrow stem cells to 50 Hz electromagnetic fields (like power lines) for 8 days and found they transformed into brain cells. The study identified a specific protein called Egr1 that controls this transformation process. When these lab-grown brain cells were transplanted into mice with brain diseases, the animals showed significant improvement.
Unknown authors · 2014
Researchers exposed embryonic neural stem cells (the brain cells that develop into neurons) to 50 Hz electromagnetic fields at power line frequencies. While cell growth wasn't affected, the EMF exposure altered the activity of genes that control how these stem cells develop into different types of brain cells. This suggests that power line frequency EMF can influence brain development at the molecular level, even when visible changes aren't apparent.
Unknown authors · 2014
Norwegian researchers propose that magnetite (iron oxide crystals) found naturally in human brains, hearts, livers and spleens may function as a universal memory storage system for all living cells. The hypothesis suggests that because magnetite concentrations are disrupted in Alzheimer's disease and iron imbalances affect memory, these magnetic crystals could be how our bodies store and retrieve information at the quantum level.
Unknown authors · 2014
Researchers exposed pregnant mice and newborn pups to extremely low frequency electromagnetic fields (the type from power lines) during critical brain development periods. The exposed male mice later showed autism-like behaviors including reduced social interaction and less interest in exploring new environments. This study suggests EMF exposure during pregnancy and early life may contribute to autism spectrum disorders.
Unknown authors · 2014
Researchers exposed pregnant rats and their offspring to 50 Hz electric fields (the same frequency as power lines) and measured brain and visual responses in the adult offspring. They found delayed nerve responses and increased oxidative damage in the brain and retina, suggesting that EMF exposure during development can cause lasting neurological effects.
Unknown authors · 2014
Turkish researchers exposed pregnant rats and their newborns to 900 MHz and 1800 MHz cell phone radiation for one hour daily throughout pregnancy and early development. While hearing tests showed no differences, electron microscope examination revealed significant cellular damage in the inner ear (cochlea) of exposed animals, including increased cell death.
Unknown authors · 2014
Researchers exposed mice to cell phone radiation (835 MHz) at 4.0 W/kg for three months and found significant damage to hearing-related brain regions. The radiation reduced critical brain receptors responsible for sound processing by up to 37% and caused measurable hearing problems. This suggests chronic cell phone use may harm the auditory system through direct brain damage.
Unknown authors · 2014
This 2014 review examined whether radiofrequency electromagnetic field (RF-EMF) exposure from wireless devices could damage myelin, the protective insulation around nerve fibers, potentially explaining electrohypersensitivity symptoms. Researchers found evidence suggesting RF-EMF exposure may deteriorate myelin or directly impact nerve conduction, with developing children and elderly individuals being most vulnerable.
Unknown authors · 2014
Researchers reviewed evidence linking radiofrequency electromagnetic fields (RF-EMF) to myelin damage in the nervous system. They found that RF-EMF exposure may cause myelin deterioration, which could explain symptoms experienced by people with electromagnetic hypersensitivity. The evidence suggests children and teenagers are most vulnerable since their myelin is still developing.
Unknown authors · 2014
This Australian case series examined 92 Victoria residents who reported health symptoms after smart meters were installed in their homes. The most common symptoms were insomnia, headaches, tinnitus, fatigue, cognitive problems, abnormal sensations, and dizziness. Notably, most participants had never experienced electromagnetic hypersensitivity before smart meter exposure.
Unknown authors · 2014
This 2014 research paper by Dr. David Carpenter examines the connection between excessive radiofrequency electromagnetic field exposure and the development of electromagnetic hypersensitivity (EHS). The study suggests that prolonged exposure to RF fields from wireless devices may trigger sensitivity symptoms in some individuals. This adds to growing evidence that EMF exposure can cause measurable health effects beyond just heating tissue.
Unknown authors · 2014
Researchers studied 40 petrochemical workers exposed to extremely low frequency magnetic fields from electrical substations, comparing their sleep quality and general health to unexposed controls. While 61% of exposed workers had sleep disorders and 28% showed poor health compared to just 4.5% sleep issues in controls, the study found no direct correlation between EMF exposure levels and health problems.
Unknown authors · 2014
This 2014 research review by Dr. David Carpenter examines the connection between excessive radiofrequency electromagnetic field exposure and the development of electrohypersensitivity (EHS). The study suggests that prolonged exposure to RF-EMF radiation may trigger this condition in susceptible individuals. This matters because it provides scientific backing for a condition that affects millions worldwide but remains controversial in medical circles.
Unknown authors · 2014
Turkish researchers exposed pregnant rats and their newborns to cell phone radiation at 900 MHz and 1800 MHz frequencies for one hour daily during pregnancy and early development. While hearing tests showed no differences, microscopic examination revealed significant cellular damage in the inner ear, including increased cell death and structural abnormalities in the cochlea.
Unknown authors · 2014
Researchers exposed 60 elementary school children (ages 8-10) to 10 minutes of GSM 900 MHz cell phone radiation and tested their memory and reaction times. The study found that phone radiation actually improved children's short-term memory performance compared to sham exposure, while reaction times remained unchanged.
Unknown authors · 2014
Researchers exposed mice to cell phone radiation (835 MHz) at 4.0 W/kg for three months and found significant damage to glycine receptors in brain regions responsible for hearing. The exposed mice showed 10-37% fewer functioning receptors in key auditory areas and demonstrated measurable hearing problems. This suggests that chronic cell phone use may impair the brain's ability to process sounds properly.
Unknown authors · 2014
This 2014 research paper by Dr. David Carpenter examines the connection between excessive radiofrequency electromagnetic field exposure and the development of electrohypersensitivity (EHS). The study suggests that prolonged exposure to RF-EMF radiation may trigger the onset of electromagnetic hypersensitivity symptoms in susceptible individuals. This adds to growing scientific recognition that EHS represents a real physiological response to EMF exposure rather than a psychological condition.
Shirai T et al. · 2014
Japanese researchers exposed rats to cell phone radiation (2.14 GHz W-CDMA signals) for 20 hours daily across three generations to see if it affected brain development and behavior. They found no abnormalities in brain function, behavior, or general health in any generation of rats, even with continuous exposure from pregnancy through adulthood. The study suggests that this type of cell phone radiation at these exposure levels does not cause harmful effects that pass from parents to offspring.
Salunke BP, Umathe SN, Chavan JG · 2014
Researchers exposed mice to 2.45 GHz electromagnetic radiation (the same frequency used by Bluetooth devices) for up to 120 days to see if it would cause anxiety, obsessive-compulsive behaviors, or depression. The study found no behavioral changes in the mice at any time point, suggesting this level of EMF exposure did not affect their mental state or behavior patterns.