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 · 2023
Researchers exposed 21 healthy volunteers to 900 MHz cell phone radiation and measured their brain activity using EEG. They found that theta brainwaves were significantly altered during exposure, with the effect depending on whether participants had their eyes open or closed. This is the first study to show that cell phone radiation can change specific brainwave patterns in real-time.
Varshney S, Angral S, Aggarwal P et al. · 2023
Researchers studied 865 adults aged 18-45 who used mobile phones for over 2 years, measuring their auditory brainstem responses (ABR) to detect potential nerve damage from electromagnetic radiation. They found that heavy users (over 180 minutes daily) and long-term users (over 12 years) showed measurable changes in how their brains process sound signals. The study suggests prolonged mobile phone use may affect the auditory nervous system.
Unknown authors · 2023
Researchers measured brain waves in 32 healthy volunteers during mobile phone EMF exposure using sophisticated EEG monitoring and statistical analysis. They found statistically significant changes in alpha brain wave patterns when participants' eyes were open during EMF exposure. This provides robust evidence that mobile phone radiation can measurably alter brain activity in real-time.
Unknown authors · 2023
Researchers exposed mice to WiFi radiation (2.45 GHz) for 16 weeks using both household routers and laboratory equipment to simulate real-world conditions. The exposed mice showed increased movement activity and reduced DNA methylation in their brains, but no visible structural brain damage. This suggests WiFi radiation may cause subtle biological changes even without obvious tissue damage.
Unknown authors · 2023
Researchers studied how extremely low-frequency electromagnetic fields (ELF-EMF) and ketamine affect depression-like behavior, learning, memory, and brain proteins in animals experiencing chronic stress. The study examined multiple brain markers including GFAP, caspase-3, p53, BDNF, and NMDA receptors. This research explores whether ELF-EMF exposure might influence mental health outcomes and brain function under stress conditions.
Unknown authors · 2023
Scientists tested zebra finches' ability to navigate using Earth's magnetic field when exposed to radio frequency radiation at extremely low levels (10 nT). The study found that RF fields don't eliminate birds' magnetic sensing but alter it in complex ways, with different types of RF creating different navigation patterns. This reveals that even very weak RF pollution can interfere with natural biological navigation systems.
Unknown authors · 2023
Researchers exposed rats to Wi-Fi radiation and found it damaged brain cells in the hippocampus, the brain region crucial for memory and learning. However, rats that exercised regularly before and during Wi-Fi exposure showed significantly less brain damage. The study suggests physical exercise may help protect against Wi-Fi-related brain harm.
Unknown authors · 2023
Researchers exposed young male rats to electromagnetic fields from multiple cell phones and tested their learning and memory abilities. The EMF exposure improved short-term learning but impaired long-term memory formation. Treatment with lipoic acid (an antioxidant) reversed these memory problems and restored normal brain function.
Unknown authors · 2023
Turkish researchers exposed rats to cell phone frequencies (900, 1800, and 2100 MHz) for 3 hours daily for one month and found increased spacing between brain cells in both brain hemispheres. The study used electron microscopy to measure these cellular changes, with 1800 MHz showing the strongest effects in the right brain and 2100 MHz in the left brain. This suggests cell phone radiation may alter brain tissue structure at the microscopic level.
Unknown authors · 2023
Researchers exposed rats with vascular dementia to WiFi radiation (2.45 GHz) for 2 hours daily over 45 days and found it improved their learning, memory, and brain cell survival. The WiFi exposure helped restore normal brain function and increased neuron density in the hippocampus, the brain's memory center. This unexpected finding suggests low-level microwave radiation might have therapeutic potential for certain brain conditions.
Unknown authors · 2023
Researchers exposed mice to 2.45 GHz WiFi radiation for 16 weeks using both household routers and lab equipment. The exposed mice showed increased movement activity and reduced DNA methylation in their brains, though no visible brain damage occurred. This suggests WiFi radiation can alter brain chemistry and behavior even without causing obvious structural harm.
Unknown authors · 2023
Researchers exposed 360 ticks to 900 MHz electromagnetic radiation (similar to cell phone frequencies) and found significant decreases in brain chemical messenger levels, especially in females exposed for 1-3 hours. This is the first study showing EMF can disrupt the nervous system function of these disease-carrying parasites.
Unknown authors · 2023
Researchers exposed young rats to cell phone radiation at 2115 MHz for 8 hours continuously and found significant brain damage including DNA breaks, reduced formation of new brain cells, and neuronal death in the hippocampus. The radiation caused oxidative damage and specifically harmed the brain region critical for learning and memory.
Unknown authors · 2023
Researchers exposed newborn rat brain cells to 2100 MHz cell phone radiation for 2 hours and found it triggered cell death through oxidative stress and mitochondrial damage. However, compounds called pyrazole derivatives protected the brain cells by reducing harmful reactive oxygen species and preventing programmed cell death.
Unknown authors · 2023
Researchers exposed male rats to 5 GHz WiFi radiation (similar to modern routers), CT scan radiation, or both combined, then examined blood, brain function, and genetic damage. The 5 GHz exposure alone caused loss of important tumor suppressor genes and increased cellular damage, while CT scans affected blood cells and organ structure. Both radiation types caused harmful effects whether used alone or together.
Unknown authors · 2023
Researchers exposed pregnant rats to cell phone radiation, then induced brain injury in their newborn pups to see how the combination affected brain damage. They found that pups whose mothers were exposed to RF radiation during pregnancy suffered significantly worse brain damage, inflammation, and behavioral problems when they experienced oxygen deprivation after birth. The study suggests prenatal cell phone exposure may make developing brains more vulnerable to injury.
Unknown authors · 2023
Researchers exposed young male rats to electromagnetic fields from multiple cell phones and found mixed effects on brain function - improved short-term learning but impaired long-term memory formation. Treatment with lipoic acid, an antioxidant supplement, reversed these negative memory effects and restored normal brain chemistry. The study suggests cell phone radiation can disrupt memory consolidation in developing brains.
Unknown authors · 2023
Scientists exposed young rats to cell phone radiation (2115 MHz) for 8 hours and found significant brain damage, including DNA breaks and reduced formation of new brain cells in the hippocampus memory region. The study shows that even short-term exposure to radiofrequency radiation at levels similar to mobile phone use can harm the developing brain.
Unknown authors · 2023
Researchers exposed newborn rat brain cells to 2100 MHz mobile phone radiation for 2 hours and found it triggered cell death through oxidative stress. However, treatment with hispolon compounds protected the brain cells by reducing harmful reactive oxygen species and preventing programmed cell death.
Unknown authors · 2023
Researchers exposed rats to Wi-Fi radiation and found it damaged brain cells in the hippocampus, the region crucial for memory and learning. However, rats that exercised regularly before and during Wi-Fi exposure showed significantly less brain damage. The study suggests physical exercise may help protect the brain from wireless radiation effects.
Unknown authors · 2023
Researchers exposed young rats to electromagnetic fields from multiple cell phones and found the exposure enhanced short-term learning but impaired long-term memory formation. Treatment with lipoic acid, an antioxidant, successfully reversed both the learning enhancement and memory problems, restoring normal brain function.
Unknown authors · 2022
This comprehensive review examined evidence showing that wildlife and plants are being harmed by the growing levels of electromagnetic radiation from human technology, spanning frequencies from 0 Hz to 300 GHz. The researchers found that animals and plants are extraordinarily sensitive to EMF at intensities far below current safety standards, which only protect humans. The evidence suggests we may be causing ecosystem-wide damage across all species studied.
Relationship between cell-phone over-use scale with depression et al. · 2022
Researchers studied 212 Iranian university students to examine connections between excessive cell phone use and mental health problems. They found that students who overused their phones had significantly higher levels of stress and anxiety, though the link to depression wasn't statistically significant. The findings suggest that problematic phone use patterns may worsen psychological well-being in young adults.
Calderón et al · 2022
Researchers developed a sophisticated algorithm to calculate how much radiofrequency and extremely low frequency electromagnetic radiation reaches different brain regions from wireless phone use in young people aged 10-24. They found that older GSM phones deliver substantially higher radiation doses than newer 3G phones, and that radiation exposure varies dramatically depending on which part of the brain you're measuring.
Kazemi M, H. · 2022
This study examined how brain teaser games affect the central nervous system and cognitive function. Researchers found that playing these games activated stress pathways in the brain, leading to measurable changes in brain signals and improved attention. The findings suggest cognitive games can positively influence brain activity and mental performance.