Yao K, Wu W, Wang K, Ni S, Ye P, Yu Y, Ye J, Sun L. · 2008
Researchers exposed human eye lens cells to 1.8 GHz radiofrequency radiation (the frequency used by GSM cell phones) at power levels of 1-4 watts per kilogram for 2 hours. They found that higher exposure levels caused DNA damage and increased harmful molecules called reactive oxygen species in the cells. Interestingly, when they added electromagnetic 'noise' to the radiation, it prevented these cellular damage effects.
Wu W, Yao K, Wang KJ, Lu DQ, He JL, Xu LH, Sun WJ. · 2008
Researchers exposed human eye lens cells to cell phone radiation at levels four times higher than safety limits and found it caused DNA damage and increased harmful reactive oxygen species (molecules that damage cells). However, when they simultaneously exposed the cells to electromagnetic noise fields, this completely blocked the DNA damage and cellular harm from the phone radiation.
Schwarz C et al. · 2008
German researchers exposed human cells to cell phone radiation (UMTS, 1,950 MHz) at levels well below safety limits to test for DNA damage. They found that skin cells (fibroblasts) showed significant genetic damage at extremely low exposure levels - as little as 0.05 W/kg, which is 40 times lower than the current safety limit. However, immune cells (lymphocytes) showed no damage, suggesting different cell types respond differently to radiofrequency radiation.
Mazor R et al. · 2008
Researchers exposed human blood cells to 800 MHz radiofrequency radiation (similar to cell phone frequencies) for 72 hours at levels close to current safety limits. They found significant increases in chromosome abnormalities called aneuploidy, where cells had the wrong number of chromosomes. This type of genetic damage can contribute to cancer development and other health problems.
Manti L et al. · 2008
Researchers exposed human blood cells to cell phone radiation, then X-rays, to test DNA damage effects. While radiation didn't increase damaged cells overall, it increased chromosome damage within affected cells by a small but significant amount, suggesting interference with DNA repair processes.
Stacy Eltiti et al. · 2007
UK researchers developed and validated a questionnaire to identify symptoms that people with electromagnetic hypersensitivity (EHS) experience, surveying 20,000 people to understand how common these symptoms are in the general population. The study identified eight distinct symptom categories including headaches, skin problems, and heart-related issues that EHS individuals report more severely than others. This research provides scientists with a standardized tool to identify the most sensitive individuals for future EMF health studies.
Unknown authors · 2007
A massive 15-country study of over 400,000 nuclear workers found significant increases in cancer deaths linked to low-dose ionizing radiation exposure over decades. Workers showed a 97% increase in cancer mortality per unit of radiation dose, with lung cancer and multiple myeloma showing the strongest associations.
Unknown authors · 2007
Researchers exposed human immune cells to 50 Hz magnetic fields (the same frequency as power lines) at various strengths for 72 hours. The study found significantly increased DNA damage in cells exposed to these fields compared to unexposed controls. This suggests that everyday exposure to power line frequencies may cause genetic damage at the cellular level.
Unknown authors · 2007
Egyptian researchers studied 85 people living near a cell tower and compared them to 80 controls, finding significantly higher rates of headaches, memory problems, dizziness, depression, and sleep issues among those living closest to the tower. The exposed group also showed measurable declines in attention and memory performance on cognitive tests, even though radiation levels were within government safety limits.
Unknown authors · 2007
Scientists developed a mathematical model showing how magnetic nanoparticles inside cells could increase DNA damage and cancer risk by generating harmful free radicals. The model suggests these particles may explain why childhood leukemia rates are elevated, particularly in very young children whose cells are rapidly dividing.
Unknown authors · 2007
Egyptian researchers studied 85 people living near cell tower antennas and found significantly higher rates of headaches, memory problems, dizziness, depression, and sleep issues compared to controls. The exposed residents also showed reduced performance on attention and memory tests, even though radiation levels were below official safety limits.
Unknown authors · 2007
UK researchers developed and tested a questionnaire to identify symptoms that people with electromagnetic hypersensitivity (EHS) experience, surveying 20,000 randomly selected individuals. The study identified eight categories of symptoms including neurological, skin, auditory, headache, heart, cold-related, movement, and allergy symptoms. The questionnaire successfully distinguished between people who believe they have EHS and control groups, providing researchers with a standardized tool to study this controversial condition.
Unknown authors · 2007
Egyptian researchers studied 85 people living near mobile phone base stations and found significantly higher rates of headaches, memory problems, dizziness, depression, and sleep issues compared to 80 controls. The exposed group also showed impaired attention and memory test performance, even though radiation levels were below official safety limits.
Unknown authors · 2007
This 2007 study tested how well people claiming electromagnetic hypersensitivity (EHS) could actually detect electrical currents at 50 Hz power line frequency. Researchers found that EHS groups varied dramatically depending on how they were recruited, with many showing no greater electrical sensitivity than the general population.
Unknown authors · 2007
Researchers surveyed university students in Iran about health symptoms potentially linked to mobile phone, cordless phone, and computer screen use. Despite high rates of reported symptoms like headaches (53.5%) and fatigue (35.6%), the study found no significant association between device use and these health complaints. The authors suggest cultural differences in media coverage may explain why their results differ from studies in developed countries.
Unknown authors · 2007
Researchers investigated the unusual phenomenon where humans and animals can actually hear pulsed microwave radiation, despite electromagnetic waves normally being invisible and silent. The study found that microwave pulses create tiny heat expansions in head tissues that generate sound waves, which travel through bone to the inner ear where they're perceived as clicks or buzzing sounds. This effect occurs with frequencies from hundreds of MHz to tens of GHz, including those used by wireless devices and MRI machines.
Unknown authors · 2007
Researchers tested 84 healthy young adults to see if they could consciously detect GSM cell phone radiation (902 MHz) in controlled laboratory conditions. Despite financial incentives for good performance, participants performed no better than random guessing, providing evidence against electromagnetic sensitivity to mobile phone fields.
Unknown authors · 2007
Iranian researchers studied 60 children with acute leukemia and 59 healthy children, examining their proximity to high-voltage power lines (123-400 kilovolts). Children living within 500 meters of these lines showed 8.67 times higher odds of developing leukemia. The study found 23.5% of leukemia patients lived near high-voltage lines compared to only 3.3% of healthy children.
Unknown authors · 2007
Researchers created a detailed computer model of a pregnant woman to study how 50 Hz electric and magnetic fields (like those from power lines) affect the fetus. They found that while the mother's brain stayed within safety limits, the fetus experienced electric current densities that significantly exceeded international safety guidelines.
Unknown authors · 2007
Researchers investigated 196 UK homes to identify sources of elevated power frequency magnetic field exposure linked to childhood leukemia risk. They found that 77% of exposures above 0.2 microT came from low-voltage electrical sources within homes (like wiring problems), while high-voltage power lines accounted for only 23%. This challenges the common focus on overhead power lines as the primary concern.
Unknown authors · 2007
UK health officials analyzed the scientific evidence linking power line magnetic fields to childhood leukemia and concluded that low-cost precautionary measures are justified despite scientific uncertainty. Using established criteria for evaluating health risks, they found that while the evidence isn't definitive, the consistent association across multiple studies warrants protective action.
Unknown authors · 2007
Researchers compared CT scans and MRI scans for diagnosing blood clots in the lungs. While MRI showed 94.7% accuracy without using ionizing radiation, CT scans remained the preferred method due to faster imaging and better performance in critically ill patients.
Unknown authors · 2007
Researchers in Northern England studied 4,723 children with cancer and found that those whose fathers worked in jobs with electromagnetic field or radiation exposure had a 31% higher risk of leukemia. The risk was particularly elevated (81% higher) for boys under age 6, while girls showed no significant increase.
Unknown authors · 2007
Researchers studied 854 people diagnosed with blood cancers in Tasmania between 1972-1980, comparing them to matched controls based on their proximity to high-voltage power lines. Living within 300 meters of power lines increased cancer risk, with children under 5 showing a fivefold higher risk that persisted into adulthood.
Unknown authors · 2007
Egyptian researchers studied 85 people living near a mobile phone base station and compared them to 80 controls. Those living near the tower showed significantly higher rates of headaches, memory problems, dizziness, depression, and sleep issues, plus measurable deficits in attention and memory tests. This occurred even though radiation levels were below official safety standards.
