Ziegenbalg L, Güntürkün O, Winklhofer M · 2025
This study examined whether extremely low frequency (ELF) magnetic fields could distract animals from non-magnetic sensory tasks by training zebrafish to perform a visual avoidance response to a green LED light. The researchers found that exposure to a 0.06 mT sinusoidal magnetic field (0.3 Hz) impaired the fish's learning performance and response behavior despite the visual signal being salient enough to normally elicit the conditioned response.
Zhang L, Geng D, Xu G, An H · 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.
Kumar A, Roy A, Karaddi V, Jain S, Katyal J, Gupta YK · 2025
This study investigated whether extremely low-frequency magnetic field stimulation (17.96 μT, 50 Hz, 2 hours daily for 2 weeks) could improve cognitive function in rats with streptozotocin-induced Alzheimer's-like dementia. The researchers found that the magnetic field stimulation improved spatial and reference memory, stimulated adult neurogenesis in the brain, reduced oxidative stress, and provided neuroprotection in key brain regions including the hippocampus and prefrontal cortex.
Hadzibegovic S et al. · 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.
Gülmez K, Demirkazık A, Taşkıran AŞ · 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.
Goforth KM et al. · 2025
Scientists discovered that loggerhead sea turtles can learn to recognize specific magnetic field signatures of different ocean locations, essentially creating a magnetic map for navigation. The study revealed that turtles use two separate biological mechanisms - one for their magnetic compass and another for their magnetic map. Radiofrequency fields disrupted compass navigation but not map learning, suggesting these systems operate differently.
Ghassemkhani K, Dotta BT · 2025
Researchers tested whether theta burst electromagnetic fields (TBEMF) could disrupt learning in planaria flatworms. While control worms successfully learned to avoid areas with bright light, worms exposed to 1 μT TBEMF at 100 Hz showed no learning ability. This suggests EMF exposure can interfere with basic memory formation processes.
(VO et al. · 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.
Gülmez K, Demirkazık A, Taşkıran AŞ · 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.
Tüfekci KK, Tatar M, Elamin AAE, Kaplan S · 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.
Slezáková Z, Baláž J, Wimmerová S, Valachovičová M · 2025
Medical students alternated sleeping with and without mobile phones for two-week periods while wearing smartwatches to monitor sleep patterns. The study found no significant differences in sleep quality or duration between the two conditions. However, exposure to phone radiation did measurably reduce blood oxygen saturation levels during sleep.
Sauter C et al. · 2025
German researchers tested whether older adults (ages 60-80) show greater cognitive vulnerability to cell phone radiation than younger people typically studied. Sixty healthy participants performed attention tasks while exposed to GSM 900 MHz and TETRA 385 MHz signals in a controlled lab setting. The study found minimal effects, with only 2 out of 16 performance measures showing statistically significant changes, and only in women.
Narayanan SN et al. · 2025
Researchers exposed young rats to 900 MHz cell phone radiation for one hour daily over four weeks and found significant brain and stress system damage. The radiation caused increased fearfulness, brain cell death in the hippocampus (crucial for memory), and damage to stress hormone-producing glands. This suggests cell phone frequencies may disrupt normal fear responses and brain development.
Lameth J et al. · 2025
Researchers exposed mice to 5G signals at 3.5 GHz for six weeks, finding no changes in behavior, memory, or anxiety levels. However, the radiation did alter gene expression in brain cells, particularly affecting genes related to brain communication pathways. The study shows 5G can cause biological changes even when behavioral effects aren't obvious.
Iranfar S, Wallace J, Selmaoui B, Yahia-Cherif L · 2025
Researchers exposed healthy young adults to 900 MHz cell phone signals and measured brain activity using magnetoencephalography (MEG). The study found that even brief exposure altered brain connectivity patterns, particularly affecting communication between regions in the right hemisphere including areas involved in memory and emotion processing.
Lameth J et al. · 2025
Researchers exposed mice to 5G signals at 3.5 GHz frequency for six weeks, finding no changes in behavior or memory but detecting subtle gene expression changes in brain tissue. The study found less than 1% of brain genes were affected, with changes concentrated in areas handling nerve communication and cellular energy production.
Unknown authors · 2024
Researchers analyzed brain tissue from 203 people in Mexico City and found magnetic nanoparticles that move when exposed to electromagnetic fields of 25-100 mT. These particles, containing iron and other metals, accumulated in children's brains and were linked to early-onset Alzheimer's, Parkinson's, and ALS. The particles can interfere with brain cell function when activated by everyday electromagnetic exposures.
Pietramala K, Greco A, Garoli A, Roblin D · 2024
Researchers treated 20 children with autism using extremely low-frequency electromagnetic fields for 15 weeks and found significant improvements in language skills and behavioral problems. The children showed better receptive and expressive language abilities, with fewer attention and behavioral issues according to standardized tests. The treatment appeared safe with no reported side effects.
Grob R, Müller VL, Grübel K, Rössler W, Fleischmann PN · 2024
Scientists studied how desert ants use Earth's magnetic field for navigation by manipulating magnetic conditions and examining brain changes. They found that magnetic information is processed in two key brain regions: the central complex (internal compass) and mushroom bodies (learning and memory centers). This reveals that ants use magnetic fields both for navigation and to calibrate their visual compass systems.
Unknown authors · 2024
Researchers analyzed brain tissue from 203 people in Mexico City and found magnetic nanoparticles accumulating in children's brains, particularly in areas affected by Alzheimer's and Parkinson's diseases. These particles, measuring 7-20 nanometers and containing various metals, can move when exposed to electromagnetic fields as weak as 30-50 microTesla. The study suggests these magnetic particles interfere with brain function and contribute to early-onset neurodegenerative diseases.
Torres-Ruiz M et al. · 2024
Spanish researchers exposed zebrafish embryos to 5G frequencies (700 MHz and 3500 MHz) for 1-4 hours during early development. While the fish survived and developed normally, they showed altered brain chemistry, increased anxiety-like behaviors, and learning problems that persisted days later. The 700 MHz frequency caused more pronounced effects than 3500 MHz.
Popovičová A et al. · 2024
Slovak researchers exposed pregnant rats to 2.45 GHz microwave radiation (WiFi frequency) for 2 hours daily throughout pregnancy. Their offspring showed significant disruptions in brain cell growth and development in key regions responsible for learning and memory, along with behavioral changes that persisted into adulthood.
Zhao J, Ma J, Wang X, Zhang B · 2024
Researchers exposed mice to 90 kHz electromagnetic fields from wireless power transfer systems (used in smart home devices) for up to 8 weeks. While the mice showed no cognitive problems in memory tests, their brain neurons became significantly more electrically active. This suggests household wireless charging technology may alter brain function even without obvious behavioral changes.
Qin TZ et al. · 2024
Researchers exposed adult male mice to 4.9 GHz radiofrequency radiation, one of the frequencies used in 5G networks. While anxiety levels and spatial memory remained unchanged, the mice developed depression-like behaviors. Brain analysis revealed significant neuron loss and cell death in the amygdala, the brain region that processes emotions.
Popovičová A et al. · 2024
Researchers exposed pregnant rats to 2.45 GHz microwave radiation (WiFi frequency) for 2 hours daily throughout pregnancy, then examined brain development in their offspring. The study found significant disruption of brain cell formation and death in key regions responsible for learning and memory, plus altered behavior in the exposed animals. This suggests the developing brain is highly vulnerable to microwave radiation during pregnancy.