Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 2,561 studies from BioInitiative Report
Karinen A, Heinavaara S, Nylund R, Leszczynski D. · 2008
Researchers exposed forearm skin in 10 women to typical mobile phone radiation levels, then analyzed tissue samples. They found 8 proteins significantly altered by the radiation exposure, with 2 proteins affected in all participants, demonstrating measurable biological changes from phone radiation.
Joseph W, Vermeeren G, Verloock L, Heredia MM, Martens L · 2008
Scientists measured radiofrequency radiation from phones, WiFi, and other devices in 28 real-world situations. They found office environments often had higher exposure than outdoors, with the highest levels on trains and buses where phones work harder to maintain connections, affecting actual body absorption rates.
Hruby R, Neubauer G, Kuster N, Frauscher M · 2008
Researchers exposed rats to 902 MHz GSM-type wireless signals (similar to cell phone radiation) for 4 hours daily over 6 months after giving them a chemical known to cause breast cancer. The RF-exposed rats showed statistically significant increases in palpable tissue masses and more malignant tumors compared to sham-exposed controls, though the researchers concluded these differences were likely incidental due to high variability in the cancer model used.
Höytö A, Luukkonen J, Juutilainen J, Naarala J. · 2008
Researchers exposed human brain cells and mouse cells to cell phone-like radiation at 5 W/kg (10 times higher than typical phone use) for up to 24 hours. The radiation alone caused no harmful effects, but when cells were already stressed by chemical toxins, the radiation made some cellular damage worse. This suggests radiofrequency radiation might amplify harm in cells that are already under stress from other sources.
Hinrikus H, Bachmann M, Lass J, Tomson R, Tuulik V. · 2008
Researchers exposed 13 volunteers to 450 MHz microwave radiation while monitoring brain waves. Specific frequencies (14 and 21 Hz) significantly increased brain electrical activity by up to 17%. This proves microwaves can alter normal brain function, with effects varying by frequency.
Hinrikus H, Bachmann M, Lass J, Karai D, Tuulik V. · 2008
Researchers exposed 66 healthy volunteers to low-level microwave radiation at various frequencies and measured their brain activity using EEG. They found that microwave exposure increased brain energy levels, with 13-31% of subjects showing significant changes in their brain wave patterns depending on the frequency used. The study demonstrates that microwave radiation can alter normal brain function even at exposure levels considered safe by current standards.
Dawe AS et al. · 2008
Scientists exposed microscopic worms to cell phone-level radiation (1.8 GHz) to test if it triggers cellular stress responses. The radiation didn't activate stress proteins, and may have slightly reduced them by 15%. This suggests cell phone emissions don't trigger this particular stress response in these organisms.
Curcio G et al. · 2008
Researchers exposed 24 people to cell phone radiation (902.40 MHz at 0.5 W/kg SAR) for three 15-minute sessions and tested their reaction times and finger coordination after each exposure. They found no statistically significant effects on these motor skills, though there was a slight trend toward faster reaction times. The study suggests that brief, repeated cell phone exposures don't appear to impair basic motor performance.
Ammari M et al. · 2008
French researchers exposed rats to 900-MHz cell phone radiation for up to 24 weeks to test whether it would impair their spatial memory and navigation abilities. The rats showed no memory deficits even when exposed to radiation levels 3-12 times higher than typical cell phone use. This suggests that chronic exposure to GSM cell phone signals may not directly damage the brain's memory systems.
Aly AA et al. · 2008
Scientists exposed infection-fighting white blood cells to 900-MHz cell phone radiation. The RF exposure made cells move 50% faster and in wrong directions, away from infection sites they should target. This immune system disruption occurred within minutes at non-heating power levels.
George I et al. · 2008
Researchers exposed rats to extremely low frequency magnetic fields (60 Hz at 8 microTesla) for 30 minutes before inducing heart attacks, then measured heart function recovery. The electromagnetic field exposure triggered production of a protective protein called HSP70, which significantly improved the heart's ability to recover from oxygen deprivation. This suggests that certain EMF exposures might actually help protect heart tissue from damage during cardiac events.
Yokus B, Akdag MZ, Dasdag S, Cakir DU, Kizil M · 2008
Levels of FapyAde, FapyGua, and 8OHdG were increased at both intensities compared to cage-control and sham groups, but statistical significance was observed only in the group exposed to 100 μT. The researchers noted that the intensity of ELF-MF has an important influence on the extent of DNA damage.
Wartenberg M et al. · 2008
Researchers exposed UM-SCC-14-C oral mucosa cancer cells to direct current electrical fields with strengths between 2 and 16 V/m for 24 hours and measured effects on cell growth and death. Exposure dose-dependently decreased cell proliferation and was associated with cell cycle arrest. Electrical field treatment at 4 V/m for 24 hours increased apoptosis, and blocking free radicals abolished those apoptosis markers.
Koyama S, Sakurai T, Nakahara T, Miyakoshi J · 2008
Researchers measured apurinic/apyrimidinic (AP) sites in human glioma A172 cells after exposure to extremely low frequency (ELF) magnetic fields, genotoxic chemicals, or both. ELF magnetic fields alone produced no difference in AP sites compared with sham controls. The results suggest that the number of AP sites induced by MMS or H2O2 is enhanced by exposure to ELF magnetic fields at 5 millitesla (mT).
Hashish AH, El-Missiry MA, Abdelkader HI, Abou-Saleh RH · 2008
Guler G, Turkozer Z, Tomruk A, Seyhan N · 2008
Erdal N, Gürgül S, Tamer L, Ayaz L · 2008
Researchers exposed adult Wistar-Albino rats to an extremely low frequency magnetic field (50 Hz, 1 mT, 4 hours per day) to study oxidative and nitrosative stress in liver tissue. 3-nitrotyrosine (3-NT) levels were significantly increased in exposed female rats compared to female controls, but no significant difference was found between exposed and control male rats. Malondialdehyde (MDA) levels showed no significant differences between control and exposed rats in either sex.
Canseven AG, Coskun S, Seyhan N · 2008
Researchers exposed guinea pigs to 50 Hz magnetic fields at 1, 2, and 3 mT for 4 h/day and 8 h/day for 5 days, measuring malondialdehyde, nitric oxide, glutathione, and myeloperoxidase activity in heart and liver tissues. MDA levels increased in the liver in some groups but decreased in both liver and heart in group VII. The researchers concluded that field intensity and exposure duration are among the conditions that influence free radical formation and antioxidant enzyme behavior.
Wang X et al. · 2008
Researchers exposed rats to extremely low-frequency electromagnetic fields (20 Hz, 14 mT) for one hour per day before daily morphine injections for 12 days, then measured dopamine D2 receptor density in the dorsal hippocampus during withdrawal. Morphine withdrawal alone significantly lowered D2 receptor density compared to saline controls, and ELF-EMF exposure during morphine treatment further reduced receptor density on the first and third withdrawal days. In both groups, D2 receptor density tended to recover as the number of withdrawal days increased.
Ross ML, Koren SA, Persinger MA. · 2008
Researchers tested whether a weak magnetic field pulsed over the left prefrontal brain region at the moment of accepting or refuting a statement could increase the likelihood of later accepting a false statement as true. Fifty men and women were each exposed to one of four magnetic field conditions, or a sham field, over the left prefrontal region above the eyebrow. Groups that received the burst-firing or 25 Hz pulsed fields during the refutation process accepted about twice the number of false statements as true compared to those in the 50 Hz or sham-field conditions. The treatments did not significantly affect the numbers of true statements accepted as false.
Piacentini R, Ripoli C, Mezzogori D, Azzena GB, Grassi C. · 2008
Partsvania B, Sulaberidze T, Modebadze Z, Shoshiashvili L. · 2008
Researchers studied how extremely low-frequency magnetic fields at 8.34 and 217 Hz affected the ability of single neurons in the mollusk Helix Pomatia to habituate to repeated stimuli. Brain ganglia were exposed to magnetic fields with peak values between 1 and 6 mT using Helmholtz coils, and neuron activity was recorded with a standard microelectrode technique. Exposure caused dehabituation, which the researchers described as occurring through degradation of the signal to noise ratio and alteration of the neuron's normal function.
Liu T, Wang S, He L, Ye K. · 2008
Researchers tested spatial learning and memory in rats using the Morris water maze after four weeks of daily exposure to a 50-Hz magnetic field of 2 mT for either one or four hours. Chronic exposure reduced the time rats took to find a hidden platform and improved long-term memory of the platform's former location. Short-term memory and motor activity were not affected.
Liu T, Wang S, He L, Ye K. · 2008
The study investigated whether anxiety levels could be affected by repeated extremely low frequency magnetic field (ELF MF) exposure of different daily durations. Rats exposed for 4 h/day showed increased anxiety-like behaviors in the open field test and the elevated plus maze test, without changes in locomotor activity, but showed no effect in the light/dark box test. Rats exposed for 1 h/day showed no effect in any of the tests.
Harakawa S et al. · 2008
Researchers examined how a 50 Hz sinusoidal electric field affected the voluntary behavior of Wistar rats using a conditioned place aversion response based on an aversive behavior against light environment. Rats conditioned without the electric field spent significantly less time in the white place, while rats conditioned with the electric field did not show such changes. The researchers considered that the aversion response to the light environment was interfered by exposure to the electric field.