Browse 8,700 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing all 8,700 studies
Unknown authors · 2006
Researchers exposed Salmonella bacteria to strong 60 Hz magnetic fields (14.6 mT) for 4 hours and found no DNA damage. However, the magnetic field exposure unexpectedly protected the bacteria from heat stress, with exposed cells showing 9 times better survival rates when subjected to high temperatures.
Unknown authors · 2006
Italian researchers exposed mice to 50 Hz magnetic fields (the same frequency as power lines) at 650 microtesla for 21 days and found significant DNA damage in newborns but not adults. The study used a specialized test that can distinguish between broken chromosome fragments and whole chromosomes that failed to divide properly during cell division.
Unknown authors · 2006
Scientists exposed transgenic plants to extremely high magnetic fields (up to 30 Tesla) and found that field strengths above 15 Tesla triggered significant stress responses and altered the expression of 114 genes. This research demonstrates that magnetic fields far stronger than those in everyday devices can cause widespread biological changes at the cellular level.
Unknown authors · 2006
Researchers exposed human immune cells called monocytes to extremely low frequency magnetic fields (1.0 mT strength) and found significant cellular activation and gene expression changes. The study detected altered activity in 986 genes and identified specific immune pathway activation that could affect how our bodies respond to infections and inflammation.
Unknown authors · 2006
Researchers exposed mouse embryos to 50 Hz electromagnetic fields (the same frequency as power lines) and found it caused DNA double-strand breaks, which are serious forms of genetic damage. The EMF exposure also reduced the embryos' ability to develop normally. While the embryos could partially repair this damage, the study shows that power line frequency radiation can harm developing life at its most vulnerable stage.
Unknown authors · 2006
Researchers exposed rat brain neurons to brief static magnetic fields and discovered they triggered a specific gene (Ntan1) that breaks down important brain proteins. The magnetic exposure caused a three-fold increase in this protein-degrading gene and led to breakdown of MAP2, a crucial protein for brain cell structure.
Unknown authors · 2006
Greek researchers exposed human immune cells (lymphocytes) to 50 Hz pulsed electric fields and found significant DNA damage compared to unexposed cells. The damage was detected using the comet assay, a sensitive test for DNA breaks. While some repair occurred after 2 hours, the findings show that power-line frequency electric fields can directly damage human genetic material.
Unknown authors · 2006
Researchers exposed male rats to static magnetic fields (128 mT) for one hour daily over 30 days to study effects on reproductive health. While sperm count remained normal, the magnetic field exposure significantly reduced testosterone levels in both blood and testicles, and caused DNA damage through oxidative stress. This suggests static magnetic fields may disrupt hormone production even when fertility appears unaffected.
Unknown authors · 2006
This 2006 commentary discusses considerations for conducting genome-wide association studies in Parkinson's disease research. The piece addresses methodological approaches for identifying genetic factors that may contribute to Parkinson's development. While not directly EMF-related, it provides context for understanding how genetic susceptibility research is conducted in neurodegenerative diseases.
Unknown authors · 2006
French researchers exposed tomato plants to 900 MHz electromagnetic fields (the same frequency used by older cell phones) and found that even low-level, brief exposures triggered significant stress responses at the genetic level. The plants rapidly produced 3.5 times more stress-related proteins within 5-15 minutes, similar to responses from physical damage.
Unknown authors · 2006
Researchers exposed two types of human cells (brain-like neuroblastoma cells and immune monocyte cells) to GSM mobile phone radiation at 900 MHz for laboratory testing. Using multiple analysis methods including gene expression, protein levels, and cell health markers, they found no significant biological effects from the radiofrequency exposure compared to unexposed control cells.
Unknown authors · 2006
Researchers exposed human blood cells to extremely high-power microwave pulses (65 kW peak power at 8.8 GHz) for 40 minutes and found no DNA damage using the comet assay. The exposure levels were thousands of times higher than typical environmental EMF sources. This suggests that under these specific laboratory conditions, pulsed microwaves did not break DNA strands.
Unknown authors · 2006
German researchers exposed human immune cells to radio frequency radiation (2 W/kg SAR) from mobile phone frequencies, both alone and combined with ultrafine particles from air pollution. The RF radiation showed no effects on cellular stress markers or free radical production, while the ultrafine particles significantly increased oxidative stress by 40-45%.
Unknown authors · 2006
German researchers exposed human blood cells from umbilical cords to 1,800 MHz cell phone radiation at 2 W/kg for up to 45 minutes, testing whether it triggers harmful reactive oxygen species or stress proteins. They found no meaningful biological effects - any statistical differences were due to lowered activity in control groups rather than increased damage from radiation.
Unknown authors · 2006
Brazilian researchers exposed rats to ultra high frequency electromagnetic fields (800-1800 MHz) similar to cell phone radiation and measured oxidative stress markers in brain tissue. They found no detectable damage to proteins or fats in the frontal cortex or hippocampus after acute exposure. The researchers noted that longer exposure studies are still needed to fully assess health risks.
Unknown authors · 2006
Researchers found that shielding mice from Earth's magnetic field increased their pain sensitivity, but only when tested in darkness. When the same magnetic shielding experiment was conducted under visible light, the pain-increasing effects disappeared. This suggests that light exposure fundamentally changes how our bodies detect and respond to magnetic fields.
Unknown authors · 2006
Researchers studied 54 people before and after a powerful radio transmitter was shut down in Switzerland, measuring sleep quality and melatonin levels. They found that stronger magnetic field exposure was linked to worse sleep and lower melatonin production, with improvements after the transmitter stopped operating. This unique real-world study provides evidence that radio frequency emissions can disrupt human sleep patterns and hormone cycles.
Unknown authors · 2006
This theoretical study by researcher Michael Persinger proposes a mechanism for how extremely weak magnetic fields (in the nanoTesla range) could affect melatonin levels and potentially treat neurological conditions like multiple sclerosis. The hypothesis suggests that 7 Hz magnetic fields at specific intensities (35-70 nanoTesla) could resonate with melatonin molecules to produce therapeutic effects. This challenges conventional thinking that such weak fields are too small to have biological impact.
Unknown authors · 2006
This 2006 review examined whether EMF exposure during embryonic development can create lasting physiological changes. Studies found that chicken embryos exposed to common 50-60 Hz power line frequencies (at levels found in human environments) showed altered brain responses after hatching. The research raises concerns about whether EMF exposure during critical developmental periods leaves permanent biological imprints.
Unknown authors · 2006
Researchers studied 60 women exposed to extremely low-frequency magnetic fields at work and found that those exposed to both magnetic fields during the day and light at night had the lowest levels of melatonin (measured through urine). This suggests that workplace magnetic field exposure may make people more sensitive to the sleep-disrupting effects of nighttime light exposure.
Unknown authors · 2006
Researchers exposed healthy premenopausal women to 60-Hz magnetic fields (5-10 milligauss above background) for five nights and measured their hormone levels. The study found that magnetic field exposure significantly decreased nighttime melatonin production but did not affect reproductive hormones like estrogen or luteinizing hormone.
Unknown authors · 2006
This 2006 review examined the 'melatonin hypothesis' of cancer, which proposes that exposure to artificial light at night and electromagnetic fields disrupts the body's natural melatonin production. The disruption of this sleep hormone may contribute to increased rates of breast cancer and childhood leukemia through weakened immune function and cellular repair mechanisms.
Unknown authors · 2006
This theoretical study by Dr. Michael Persinger proposes that extremely weak magnetic fields in the nanoTesla range (35-70 nT at 7 Hz frequency) could affect melatonin molecules and potentially treat conditions like multiple sclerosis. The hypothesis suggests these fields work through a resonance mechanism that depends on melatonin concentration levels in specific body tissues.
Unknown authors · 2006
Swiss researchers surveyed 342 general practitioners to understand how often patients seek medical help for symptoms they blame on electromagnetic fields. They found that 69% of doctors had seen at least one EMF-related patient, with sleep problems, headaches, and fatigue being the most common complaints linked to cell towers, power lines, and mobile phones. Doctors considered the EMF connection plausible in 54% of cases.
Unknown authors · 2006
Swedish researchers studied people who report electromagnetic hypersensitivity (EHS) and found measurable cellular changes in their skin tissue compared to healthy controls. The study examined 230,000-290,000 Swedish citizens who experience symptoms when exposed to electromagnetic fields. Sweden officially recognizes EHS as a functional impairment, not a disease.