Browse 8,700 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 1,859 studies (Rodent Studies)
Unknown authors · 2020
Researchers exposed pregnant rats and newborn rat pups to 900 MHz radiofrequency radiation (similar to cell phone towers) and tested their learning and memory abilities at 45 days old. All exposed groups showed impaired learning and memory performance, with prenatal exposure causing the most severe effects. Brain tissue examination revealed decreased nerve cell density in memory-related brain regions.
Unknown authors · 2020
Researchers exposed rats to mobile phone radiation (1966.1 MHz) for 2 hours daily over 16 weeks and found significant increases in brain oxidative stress, inflammatory markers, and stress hormones. The study demonstrates that chronic cell phone radiation exposure can trigger biological stress responses in the brain and body, even at levels similar to everyday phone use.
Unknown authors · 2020
Researchers exposed rats to radiofrequency electromagnetic fields for four weeks and tested their sensitivity to heat pain. They found that higher RF-EMF exposure levels (6 W/kg) made rats 40% more likely to avoid hot surfaces compared to unexposed rats. The study suggests RF-EMF may alter pain perception through brain receptors involved in hypersensitivity.
Unknown authors · 2020
Researchers exposed rats to radiofrequency electromagnetic fields (RF-EMF) for four weeks and tested their pain sensitivity to heat. Rats exposed to higher RF-EMF levels showed 40% greater heat avoidance compared to unexposed rats, suggesting RF-EMF exposure may increase pain sensitivity. The study provides potential biological support for electromagnetic hypersensitivity symptoms reported by some people.
Unknown authors · 2020
Researchers exposed pregnant rats to 1800 MHz cell phone radiation and 2400 MHz WiFi signals, then tested their offspring's behavior and brain development. The exposed pups showed altered movement patterns, changed brain chemistry, and different developmental timing compared to unexposed controls. The study suggests prenatal EMF exposure may affect how the brain develops during critical early periods.
Jeong et al. · 2020
Researchers exposed mice to 1,950 MHz radiofrequency radiation (similar to cell phone frequencies) for an extended period and observed behavioral changes along with alterations in gene expression patterns. The study focused on potential effects to the central nervous system, finding measurable impacts on both mouse behavior and genetic activity. This adds to growing evidence that chronic RF exposure may influence brain function and cellular processes.
Unknown authors · 2020
Researchers exposed pregnant rats and newborn rat pups to 900 MHz radiofrequency waves (similar to cell phone signals) and tested their learning and memory abilities at 45 days old. All exposed groups showed impaired learning and memory performance, with prenatal exposure causing the most severe effects. The study also found reduced brain cell density in the hippocampus, the brain region crucial for memory formation.
Unknown authors · 2020
Researchers exposed pregnant rats and newborn pups to 900 MHz radiofrequency radiation (similar to cell tower emissions) and tested their learning and memory abilities at 45 days old. All exposed groups showed impaired learning and memory performance, with prenatal exposure causing the most severe effects. Brain tissue examination revealed reduced density of key memory cells in the hippocampus.
Unknown authors · 2020
Scientists exposed pregnant rats and newborn rat pups to 900 MHz radiofrequency waves (similar to cell phone frequencies) from a cell tower antenna. The study found that exposure during pregnancy and early life damaged learning and memory abilities, with prenatal exposure causing the most severe effects. Brain tissue examination revealed reduced nerve cell density in the hippocampus, the brain region critical for memory formation.
Unknown authors · 2020
Researchers exposed pregnant mice to Wi-Fi signals (2.4 GHz) for 2 and 4 hours and examined the placenta tissue. They found increased oxidative stress, DNA damage markers, and cell death in the placenta after Wi-Fi exposure. This matters because the placenta is crucial for healthy fetal development during pregnancy.
Unknown authors · 2020
Researchers exposed pregnant rats to 1800 MHz cell phone radiation and 2400 MHz WiFi signals, then tested their offspring's behavior and brain development. The exposed pups showed altered movement patterns, changed brain receptor activity, and developmental differences compared to unexposed controls. This suggests prenatal EMF exposure may impact cognitive and behavioral development in mammals.
Unknown authors · 2020
Researchers exposed rats to GSM-1800 MHz cell phone radiation for 2 hours and found that brain inflammation made the rats much more sensitive to the radiation's effects. While healthy rats showed no gene changes, rats with brain inflammation had 2.7% of their brain genes altered by the same exposure.
Jeong et al. · 2020
Researchers exposed mice to 1,950 MHz radiofrequency radiation (similar to cell phone frequencies) for an extended period and observed changes in both behavior and gene expression patterns. The study found measurable alterations in how genes were expressed in the brain, along with behavioral modifications in the exposed animals. This adds to growing evidence that chronic RF exposure may affect nervous system function at the cellular level.
Unknown authors · 2020
Researchers exposed hairless rats to 94 GHz millimeter wave radiation (the same frequency used in military crowd-control weapons) for 5 months at twice the occupational safety limit. Despite this intense chronic exposure, the radiation caused no detectable changes in skin gene expression in either young or adult rats.
Unknown authors · 2020
Researchers exposed male rats to 900 MHz electromagnetic fields (the frequency used by GSM cell phones) for one hour daily over 28 days and found significant damage to testicular tissue. The EMF exposure reduced sperm cell production, decreased testosterone levels, and caused oxidative stress. When rats were also given thymoquinone (a natural antioxidant), some of the testicular damage was prevented.
Unknown authors · 2020
Researchers exposed pregnant mice to Wi-Fi signals (2.4 GHz) for 2-4 hours and found significant damage to placental tissue. The exposure increased oxidative stress, activated DNA repair genes, and triggered cell death in the placenta. This matters because the placenta is critical for fetal development and nutrient delivery.
Unknown authors · 2020
Researchers exposed rats to mobile phone radiation (1966 MHz) for 2 hours daily over 16 weeks and found increased brain oxidative stress, elevated inflammatory markers in blood, and higher stress hormone levels. While memory wasn't significantly affected, the study shows cellular-level damage from chronic phone radiation exposure at levels similar to what humans experience.
Unknown authors · 2020
Researchers exposed mice to 900 MHz radiofrequency radiation (similar to cell phone frequencies) and found it caused testicular damage, reduced testosterone, and increased oxidative stress. However, mice that received melatonin supplements showed significant protection against these harmful effects. This suggests melatonin's antioxidant properties may help shield reproductive organs from mobile phone radiation damage.
Unknown authors · 2020
This study exposed 120 rats to cell phone frequencies (900/1800 MHz and 2.4 GHz WiFi) and X-rays to test whether radiofrequency radiation affects liver function and oxidative stress. The researchers found that RF-EMF exposure before high-dose X-rays actually reduced some markers of cellular damage, suggesting the radiation may trigger protective responses. This challenges assumptions about RF-EMF being purely harmful.
Unknown authors · 2020
Researchers exposed pregnant rats and newborn pups to 900 MHz radiofrequency waves (similar to cell tower frequencies) and tested their learning and memory abilities at 45 days old. All exposed groups showed impaired learning and memory performance, with prenatal exposure causing the most severe effects. Brain tissue analysis revealed reduced nerve cell density in the hippocampus, the brain region critical for memory formation.
Unknown authors · 2020
Researchers exposed pregnant rats and newborn pups to 900 MHz radiofrequency radiation (similar to cell tower signals) and tested their learning and memory abilities at 45 days old. All exposed groups showed impaired learning and memory, with prenatal exposure causing the most severe effects. Brain tissue analysis revealed reduced cell density in the hippocampus, the brain region crucial for memory formation.
Unknown authors · 2019
Researchers exposed rats to Wi-Fi radiation at 2.4 GHz for one hour and measured how brain neurons in the barrel cortex responded to whisker stimulation. While basic neural activity remained unchanged, the study found that Wi-Fi exposure altered how neurons integrated information from multiple whisker inputs. This suggests Wi-Fi radiation can subtly modify brain processing even when individual neural responses appear normal.
Unknown authors · 2019
Researchers exposed rats to 50 Hz electromagnetic fields (the same frequency as power lines) and found unexpected improvements in sperm function and changes to cellular structures called microtubules in both brain and sperm cells. The study suggests that power line frequency EMF can alter the basic building blocks of cells in ways that might affect memory formation and reproductive function.
Unknown authors · 2019
Researchers used low-frequency repetitive transcranial magnetic stimulation (rTMS) on epileptic rats to test whether it could reduce depression and anxiety symptoms. While the magnetic stimulation didn't reduce seizure severity, it significantly improved mood-related behaviors in the treated rats. This suggests therapeutic magnetic fields might help manage psychiatric symptoms in epilepsy patients.
Unknown authors · 2019
Researchers tested whether low-field magnetic stimulation (LFMS) could help brain-injured mice recover from repeated concussions. Mice that received daily 20-minute LFMS treatments showed significantly improved memory, movement, and brain health compared to untreated injured mice. The therapy appeared to work by restoring protective brain proteins and reducing inflammation.