Browse 8,700 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 2,998 studies (Human Studies)
S. S. Stevens · 1972
Stevens' 1972 research identified an all-or-none step function in human sensory discrimination for both vision and hearing. This foundational work demonstrated that sensory perception operates in discrete quantum-like jumps rather than smooth gradients. The findings established key principles about how the nervous system processes and discriminates sensory information.
Herman P. Schwan · 1972
This 1972 foundational study by biophysicist Herman Schwan examined how microwaves interact with human tissues and established early principles for understanding biological effects. Schwan distinguished between 'strong' field effects that require high power levels and 'weak' effects, concluding that many proposed non-thermal mechanisms were unlikely based on the electrical properties of biological materials.
G. Hager, S. Pagel, U. Stronz · 1972
This 1972 German study examined infrared radiation exposure at glass furnace and heating facility workplaces, measuring radiation levels and evaluating clinical eye damage. Researchers compared workplace exposures and provided recommendations for reducing infrared radiation hazards that can cause cataracts in industrial workers.
Herman P. Schwan · 1972
This 1972 foundational study by biophysicist H.P. Schwan examined how microwave radiation interacts with human tissues and established early safety standards. Schwan classified biological effects as either 'strong' (requiring high field strengths) or 'weak,' and argued that pulsed microwave fields cannot cause more biological damage than continuous fields of the same average power.
Peter G. Thomas · 1972
This 1972 research examined the safety of microwave ovens for consumer use, focusing on potential radiation leakage and health risks. The study was conducted during the early years of microwave oven adoption when the FDA was establishing safety standards for these appliances. This represents foundational research into microwave radiation exposure from common household devices.
Sol M. Michaelson · 1972
This 1972 study examined how humans perceive microwave radiation through skin sensations, finding that people can feel warmth from microwaves within 1-4 seconds at specific power levels. Researchers established thermal sensation thresholds for 3,000 MHz and 10,000 MHz frequencies when applied to facial skin areas. The study showed that microwave perception occurs through the body's natural heat-sensing mechanisms.
Charles Merckel · 1972
This 1972 review examined microwave radiation hazards from radar systems and early microwave ovens, finding proven lethal effects in animals and cataract formation in humans. The study warned about increasing commercial and domestic microwave use creating new exposure risks, especially for people with medical implants like pacemakers.
Jeffrey McCullough et al. · 1972
This 1972 medical study documented cases where microwave devices used to warm blood for transfusions caused hemolysis (destruction of red blood cells). The research identified microwave heating as a cause of iatrogenic complications, meaning medical treatment-induced problems that harmed patients during blood transfusion procedures.
Sol M. Michaelson · 1972
This 1972 study examined 25 years of research on microwave-induced cataracts in animals and humans. Researchers found that 100 mW/cm² for one hour was the lowest threshold to cause cataracts in rabbits at frequencies between 2450-10,000 MHz. Human cases showed cataract formation only at very high exposure levels well above 10 mW/cm².
A. Frey, R. Messenger, E. Eichert · 1972
This 1972 study by researcher Allan Frey investigated the "RF sound phenomenon" where people hear sounds when exposed to radiofrequency energy directed at their heads. The research successfully created a portable device to demonstrate this effect and explored whether RF energy could generate perceived speech, finding that traditional speech synthesis methods didn't work for RF-induced sounds.
Richard F. Boggs, Albert P. Sheppard, Alma Jeanne Clark · 1972
Researchers exposed human blood plasma to 2450 MHz microwave radiation (the same frequency used in microwave ovens) for up to 24 hours at power levels up to 280 mW/cm². They found no significant changes in blood clotting time, platelet count, or clot strength when temperatures stayed below normal body temperature.
Chief, Bureau of Medicine and Surgery · 1972
The U.S. Navy's Bureau of Medicine and Surgery issued this 1972 government report addressing microwave health hazards and control measures for military personnel exposed to radar and microwave systems. The document focused on safety protocols, medical surveillance requirements, and exposure limits for Navy personnel working with microwave-emitting equipment. This represents early official recognition of microwave radiation as a potential health concern requiring formal control measures.
Leroy S. Lavine et al. · 1972
This 1972 study documented the successful use of direct electric current to heal a congenital bone defect in the tibia that hadn't responded to conventional treatment. The electrical stimulation promoted new bone formation, which was confirmed through X-rays, tissue analysis, and electron microscopy. This represents early evidence that controlled electrical fields can enhance the body's natural healing processes.
B. Dörne, R. Gäbele, H. Hille · 1972
This 1972 German study examined how infant skin responds to radiant heat exposure, focusing on thermoregulatory reactions and blood vessel responses. The research investigated how babies' developing temperature control systems react when exposed to localized heat radiation. This early work provides foundational understanding of how developing skin responds to energy exposure.
Robert M. Lebovitz · 1972
This 1972 technical report investigated how microwave radiation at supposedly safe levels affects specific parts of the human central nervous system, particularly the semicircular canals (balance organs in the inner ear). The research examined whether exposure levels considered safe by regulatory standards could still produce biological effects in sensitive neural tissues.
Arthur W. Guy et al. · 1972
Researchers studied how electromagnetic energy at different frequencies heats human tissues for medical therapy. They found that lower frequencies (433 MHz) created better, more controlled heating patterns than higher frequencies (2450 MHz). The study used tissue-equivalent models to understand how EMF penetrates and heats different layers of human tissue.
John A. Eure, James W. Nicolls, Robert L. Elder · 1972
This 1972 government survey examined microwave radiation leakage from industrial equipment like heating and drying systems. Researchers found that radiation leakage had been reduced compared to earlier measurements, with ongoing efforts to minimize worker and public exposure. The study represents early recognition of occupational EMF hazards in industrial settings.
S. M. Michaelson · 1972
This 1972 review examined the growing health concerns from electromagnetic radiation sources including microwaves, radio frequencies, and lasers used in military, industrial, and consumer applications. The study highlighted significant gaps in safety knowledge and called for better protection standards to prevent both immediate and long-term health effects. The research emphasized the urgent need for scientific data to establish credible safety limits as electromagnetic technology rapidly expanded.
Oliver C. Hood et al. · 1972
This 1972 study examined how airport metal detectors and weapons screening systems could interfere with cardiac pacemakers in passengers. The research identified electromagnetic interference risks that could potentially disrupt pacemaker function during security screening. This was among the first clinical investigations into EMF effects on implanted medical devices.
Unknown authors · 1972
This 1972 research examined the lethal and harmful effects of microwave radiation, focusing on radar exposure and health impacts including eye damage and cataracts. The study contributed to early understanding of microwave dangers before widespread consumer microwave oven adoption. This work helped establish safety protocols for both military radar operations and civilian microwave technologies.
Haralambos N. Kritikos, Herman P. Schwan · 1972
Researchers modeled electromagnetic wave heating in conducting spheres representing human heads of different sizes. They found that 10-cm radius spheres (adult heads) showed only surface heating above 1000 MHz, while smaller 4-cm spheres (child-sized heads) developed dangerous internal hot spots between 250-2800 MHz. This suggests children may face greater internal heating risks from radio frequency radiation.
Hood OC et al. · 1972
This 1972 study examined how electromagnetic weapon detection systems at airports could interfere with cardiac pacemakers. Researchers found that active magnetometers, which generate their own electromagnetic fields to detect concealed weapons, posed potential risks to passengers with implanted pacemakers. The study highlighted an early example of how security technology could create unintended medical consequences through EMF exposure.
M.N. Gnevyshev, K.F. Novikova · 1972
Soviet researchers in 1972 documented direct effects of solar activity on Earth's biosphere, including humans, through low-frequency electromagnetic field fluctuations. This groundbreaking observation led them to propose a new scientific field called "helioiology" to study solar-biological connections. The study represents early recognition that natural electromagnetic phenomena can influence living systems.
Hardy, J. D. · 1972
This 1972 Navy research studied how microwave radiation (3 cm and 10 cm wavelengths) heats human skin compared to infrared radiation. The study developed thermal measurement techniques to understand pain thresholds and thermal regulation. This foundational research was conducted to assess radiation safety for Navy personnel operating radar equipment.
Tyagin, N. V. (Nikolay Vasil'yevich) · 1971
This 1971 Soviet study examined workers exposed to Super High Frequency (SHF) microwave radiation and documented three distinct patterns of health effects: nervous system dysfunction, cardiovascular problems, and brain center disruption. The research identified that prolonged occupational exposure could cause irreversible health damage in some cases, though protective measures could prevent most harmful exposures.