Browse 8,700 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 1,859 studies (Rodent Studies)
Unknown authors · 2026
Researchers exposed young and old rats to a strong 30 millitesla static magnetic field for 10 weeks and found dramatically different immune system responses based on age. Young rats showed signs of inflammation, while older rats experienced immune suppression and stress responses. This suggests magnetic field exposure affects the body differently as we age.
Effects of wireless local area network exposure on testicular morphology and VEGF levels Çakmak E et al. · 2026
Turkish researchers exposed male rats to WiFi-frequency radiation (2.45 GHz) for one hour daily over 60 days and found significant damage to testicular tissue structure. The exposed rats showed reduced sperm-producing tube diameter, thinner tissue layers, and fewer support cells, along with increased levels of a blood vessel growth protein called VEGF. This suggests that common WiFi frequencies may harm male reproductive health through cellular damage mechanisms.
Unknown authors · 2026
Researchers exposed male rats to 3.5 GHz radiofrequency radiation (similar to some 5G frequencies) for 2 hours daily over 30 days and found significant damage to reproductive hormones and sperm-producing tissues. The antioxidant supplement CoQ10 provided partial protection against these harmful effects. This suggests that even low-level exposure to certain wireless frequencies may impact male fertility.
Unknown authors · 2026
Korean researchers exposed male rats to CDMA-modulated 900 MHz radiofrequency radiation at 4 W/kg (the international safety guideline level) for nearly their entire lifespans. They found no increased cancer rates, no genetic damage, and no effects on heart, brain, or adrenal glands. This was part of a coordinated study with Japan to verify earlier National Toxicology Program findings.
Unknown authors · 2026
Japanese researchers exposed rats to 900 MHz cell phone radiation at high levels (4 W/kg) for nearly two years to test cancer risk. They found no increase in tumors or DNA damage, contradicting earlier U.S. studies that suggested RF radiation might cause brain and heart tumors in rats.
Unknown authors · 2026
Researchers exposed rats to 28-GHz radiation (the frequency used in 5G networks) while giving them doxorubicin, a chemotherapy drug known to damage the heart. The 5G radiation made the heart damage worse, reducing protective enzymes and increasing cell death signals. Vitamin C provided some protection against these combined effects.
Unknown authors · 2025
Researchers exposed male rats to 2.45 GHz electromagnetic radiation (the same frequency as WiFi and microwave ovens) for 2 hours daily for one month, finding significant damage to testicular tissue and reduced fertility markers. However, rats given alpha-lipoic acid supplements showed protection against this damage. The study suggests that WiFi-frequency radiation can harm male reproductive health through oxidative stress and inflammation.
Unknown authors · 2025
Turkish researchers exposed rats to 2600 MHz electromagnetic fields (similar to 4G/5G cell towers) for 30 days and found significant DNA damage in blood cells but no major kidney damage. They also tested whether the antioxidant quercetin could protect against these effects. The study reveals that even without visible organ damage, EMF exposure can still cause genetic damage at the cellular level.
Unknown authors · 2025
Chinese researchers exposed male mice to 4.9GHz 5G radiation for one hour daily over 42 days, then bred them with unexposed females. The male offspring showed increased anxiety-like behaviors and reduced sperm quality, even though they were never directly exposed to the radiation themselves. The study suggests fathers' radiation exposure can affect their children through changes in sperm DNA.
Unknown authors · 2025
Researchers tested three different magnetic field frequencies (15 Hz, 3 kHz, and 70 kHz) on mouse brain neurons to see how frequency affects brain cell activity. They found that low frequency (15 Hz) suppressed neuron firing, while higher frequencies (3 kHz and 70 kHz) increased brain cell excitability, with 70 kHz showing the strongest stimulating effect. This demonstrates that magnetic field frequency is a critical factor in how electromagnetic fields influence brain function.
Unknown authors · 2025
Chinese researchers exposed Alzheimer's disease mice to 40 Hz pulsed magnetic fields and found significant improvements in brain mitochondria structure, heart rate variability, and cognitive performance. The magnetic field treatment restored damaged mitochondrial structures in brain cells and improved the mice's spatial memory abilities. This suggests specific electromagnetic frequencies might offer therapeutic benefits for neurodegenerative diseases.
Unknown authors · 2025
This study examined how noninvasive brain stimulation protects against cognitive decline in rats with experimentally induced Alzheimer's-like symptoms. Researchers found that electromagnetic brain stimulation helped preserve memory and thinking abilities by promoting the growth of new brain cells. The findings suggest that controlled electromagnetic fields might offer therapeutic benefits for neurodegenerative diseases.
Unknown authors · 2025
Researchers exposed aged mice to power line frequency magnetic fields (50 Hz at 1 mT) for 12 weeks to test whether older brains are more vulnerable to EMF effects. The study found no worsening of age-related cognitive decline or brain markers associated with Alzheimer's disease. This suggests that chronic exposure to these common electromagnetic fields may not accelerate brain aging in older populations.
Unknown authors · 2025
Researchers exposed rats to 50 Hz electromagnetic fields (like those from power lines) for 7 days and found the EMF actually improved learning and memory in epileptic animals while reducing brain oxidative stress. The study suggests power line frequency EMF may have protective effects on brain function under certain conditions.
Unknown authors · 2025
Researchers used repetitive transcranial magnetic stimulation (rTMS) at 10 Hz frequency on rats with induced depression for 15 days. The magnetic field treatment reduced depression-like behaviors and altered dopamine receptor density in brain regions beyond just the stimulated area. This suggests therapeutic magnetic fields can create beneficial brain changes that extend throughout connected neural circuits.
Unknown authors · 2025
Researchers tested electromagnetic field therapy on rats with sciatic nerve injuries, using two different magnetic field strengths (60-100 Gauss and 140-200 Gauss) for two hours daily over four weeks. Both treatment groups showed significantly improved mobility and reduced inflammation compared to untreated injured rats. This suggests magnetic field therapy may help nerve repair and recovery after injury.
Unknown authors · 2025
Researchers exposed mice with induced osteoporosis to pulsed electromagnetic fields (PEMF) and found the treatment reduced bone loss and promoted bone regeneration. The PEMF therapy worked by decreasing inflammatory molecules and increasing protective immune responses in the spleen. This suggests electromagnetic fields might have therapeutic applications for bone health conditions.
Unknown authors · 2025
Researchers tested extremely low frequency magnetic fields (50 Hz, 17.96 µT) on rats with Alzheimer's-like brain damage. Two weeks of daily 2-hour exposure improved memory and learning by stimulating new brain cell growth in key memory regions. The treatment reduced brain inflammation and protected neurons from further damage.
Unknown authors · 2025
Researchers exposed rats to power line frequency electromagnetic fields (50 Hz) for 165 minutes daily over 7 days, then tested their learning, memory, and pain responses. The EMF exposure actually improved learning and memory in epileptic rats while increasing pain tolerance in all exposed animals. The study found that EMF reduced harmful oxidative stress in brain regions critical for memory.
Unknown authors · 2025
Researchers exposed pregnant rats to WiFi-frequency radiation (2.45 GHz) throughout pregnancy, then examined their offspring's thyroid glands one year after birth. The study found significant thyroid damage including increased cell death, DNA breaks, tissue scarring, and abnormal cells in the exposed offspring. This suggests prenatal WiFi exposure may cause lasting thyroid problems that persist into adulthood.
Unknown authors · 2025
Researchers exposed pregnant rats to WiFi-frequency radiation (2.45 GHz) throughout pregnancy, then examined their offspring's thyroid glands one year later. The study found significant thyroid damage including increased tissue scarring, abnormal cells, DNA breaks, and cell death in animals whose mothers were exposed during pregnancy. This suggests that prenatal EMF exposure can cause lasting thyroid problems that persist into adulthood.
Unknown authors · 2025
Researchers exposed pregnant rats to cell phone radiation at different stages of pregnancy and examined the ovarian development of their female offspring. They found that maternal cell phone exposure significantly reduced hormone levels, decreased healthy egg cell development, and increased cell death in the ovaries of newborn rats. The effects were most severe when mothers were exposed during the first week of pregnancy.
Unknown authors · 2025
Researchers exposed rats to 5.9 GHz 5G radiation for 2 hours daily for 30 days and found significant damage to testicular tissue, including loss of sperm cells and increased cellular stress markers. When rats were also given coenzyme Q10 supplements, the testicular damage was largely prevented. This suggests 5G frequencies may harm male reproductive health through oxidative stress.
Unknown authors · 2025
Researchers exposed male rats to 2.45 GHz Wi-Fi radiation for either 4 or 24 hours daily over 8 weeks and found significant damage throughout the reproductive system. The study revealed tissue damage in testes, sperm ducts, and accessory glands, along with reduced sperm count and impaired sperm movement. This comprehensive analysis shows Wi-Fi exposure affects the entire male reproductive system, not just sperm production.
Unknown authors · 2025
Researchers exposed pregnant rats to 900 MHz EMF radiation (similar to cell phone frequencies) during different stages of pregnancy and examined brain damage in their offspring 28 days after birth. They found that exposure during the final week of pregnancy (days 15-21) caused significant brain cell death in the hippocampus, the brain region critical for learning and memory. This timing coincides with a crucial period of brain development when new neurons are forming.