Kouwenhoven WB et al. · 1967
Johns Hopkins researchers conducted a 30-month medical study of 11 electrical linemen exposed to high-voltage 60-Hz power line fields during maintenance work. The study tracked physiological changes in workers using both conventional hot stick methods and barehanded techniques from aerial buckets connected to energized conductors. This represents one of the earliest comprehensive medical evaluations of occupational EMF exposure effects.
W. B. Kouwenhoven et al. · 1967
This 1967 Johns Hopkins study tracked 11 power line workers exposed to high-voltage 60 Hz electric fields over 32 months, comparing health effects between conventional workers using insulated tools versus those working barehanded from aerial buckets connected to live wires. The research examined physiological impacts of occupational AC electric field exposure and evaluated protective equipment effectiveness.
P. C. Constant, Jr. · 1967
This 1967 conference paper by PC Constant Jr. explored the phenomenon of electromagnetic wave hearing, focusing on how humans can perceive microwave radiation as auditory sensations. The research examined factors like pulse width and frequency in microwave-induced hearing effects. This early work helped establish the scientific foundation for understanding how electromagnetic fields can directly stimulate the auditory system.
McCoy, AS · 1967
This 1967 study investigated reports of people experiencing unexplained buzzing sensations that researchers suspected might be caused by radar electromagnetic waves. The research examined whether radar systems could produce physical effects detectable by humans, representing early recognition that electromagnetic fields might cause biological responses.
D. P. Photiades, S. C. Ayivorh · 1967
Researchers in 1967 tested whether electrostatic fields could help monkeys relax before electroanesthesia procedures. They found that 750 volt per centimeter electrostatic fields produced relaxing and mild sleep-inducing effects in monkeys. This suggested a way to reduce the dangerous side effects of electrical anesthesia by using less current.
Ban K · 1967
Japanese researchers exposed 50 mice to microwave radiation at various power densities (6.8 to 43.4 mW/cm²) for 5 minutes daily over 7 weeks. Despite observing behavioral changes like face washing and avoidance behaviors at higher power levels, microscopic examination of organs showed no tissue damage. Only one mouse died during the study period.
J. A. Tanner · 1966
This 1966 study by J.A. Tanner examined how microwave radiation affects birds, investigating both thermal (heating) effects and behavioral changes. The research focused on understanding how electromagnetic fields from microwave frequencies impact avian biology and behavior patterns. This early work helped establish foundational knowledge about microwave radiation effects on living organisms.
Е. И. Смурова, Г. З. Гослант, И. Л. Якуб, С. А. Троицкая · 1966
This 1966 Soviet medical journal study investigated health effects on personnel working with high-frequency electromagnetic field generators used in physiotherapy. The research examined occupational exposure to various EMF sources including VHF (very high frequency), UHF (ultra high frequency), and microwave generators. This represents early documentation of health concerns for medical workers operating electromagnetic therapy equipment.
Goncharova NN, Karamyshev VB, Maksimenko NV · 1966
This 1966 Soviet study examined workplace health hazards for workers operating ultra-short wave transmitters in television and radio broadcasting facilities. The research identified occupational hygiene problems associated with RF radiation exposure from high-power transmitting equipment. This represents early recognition that broadcast workers faced significant electromagnetic field exposures requiring protective measures.
Hornowski J, Marks E, Chmurko E, Panneri L, Wojskow · 1966
This 1966 research by Hornowski examined the harmful effects of microwave radiation on human health, focusing on occupational exposure scenarios. The study represents early recognition that microwave technology could pose pathogenic (disease-causing) risks to people exposed in workplace settings. This pioneering work helped establish the foundation for understanding microwave health effects decades before cell phones became widespread.
E. A. Drogichina et al. · 1966
Soviet researchers studied 100 workers exposed to microwave radiation for 10 years, finding progressive nervous system and heart problems. Early symptoms included fatigue, low blood pressure, and slow heart rate, with more severe changes developing over time. This landmark occupational health study demonstrated that prolonged microwave exposure causes measurable health effects in humans.
Heinrich Dinkloh · 1966
This 1966 study by H. Dinkloh examined health damage caused by microwave radiation, with particular focus on radar wave exposure in humans. The research represents early scientific investigation into the physiological effects of microwave electromagnetic radiation. This work contributed to understanding potential health risks from microwave technology during the Cold War era when radar systems were rapidly expanding.
E. A. Drogichina et al. · 1966
Soviet researchers in 1966 studied 100 people chronically exposed to ultra-high frequency electromagnetic fields, documenting a progression of health effects from mild fatigue to severe cardiovascular problems. The study found that prolonged RF exposure caused increasingly serious symptoms including high blood pressure, blood vessel spasms, and coronary artery problems. This early research provided some of the first clinical evidence that chronic EMF exposure could cause measurable cardiovascular damage in humans.
Lysina, G. G. · 1965
Soviet researchers in 1965 studied 100 workers chronically exposed to UHF radiation and found significant health effects including weakness, headaches, heart problems, and blood abnormalities. Workers exposed for over 3 years showed increased reticulocytes (immature red blood cells) and basophile granules - changes typically seen in radiation poisoning and anemia. The study documented clear biological effects even at exposures near or below the permitted threshold levels of that era.
Loshak A Y · 1965
Soviet researchers in 1965 studied 402 radar operators working in different climates and found that hot weather increased the biological effects of microwave radiation exposure. Workers in Central Asia and the Caucasus showed more health changes than those in temperate European regions, despite similar radiation levels.
Tiagin NV · 1965
This 1965 Soviet research by Tiagin examined the biological effects of ultra-high frequency electromagnetic fields on humans, likely focusing on occupational exposures. The study represents early scientific investigation into how radiofrequency radiation affects human physiology. This work contributed to the foundation of EMF health research during the Cold War era when both superpowers were studying electromagnetic effects on military and civilian personnel.
Sol M. Michaelson et al. · 1965
This 1965 study exposed dogs to microwave radiation at two different frequencies (1285 and 2800 MHz) and found direct correlations between radiation intensity and weight loss at both frequencies. The research revealed that blood cell changes and signs of distress varied by frequency, with 1285 MHz causing less obvious distress symptoms even when body temperatures reached dangerous levels.
L. Minecki · 1964
This 1964 study examined workers exposed to microwave radiation between 500-750 MHz and found significantly higher rates of health symptoms compared to unexposed controls. The research challenged the prevailing assumption that microwaves only cause harm through heating effects, arguing that non-thermal biological effects were being overlooked in safety standards.
H. C. Sommer, H. E. von Gierke · 1964
This 1964 study examined how alternating electrostatic fields at audio frequencies can cause hearing sensations when applied to the head. Researchers found that these electromagnetic fields can mechanically stimulate the auditory system through electrostatic forces, creating sound perceptions without actual sound waves.
William Talver Harvey, James Page Hamilton · 1964
This 1964 thesis by W.T. Harvey investigated how humans can actually hear amplitude modulated radio frequency fields, a phenomenon known as electrophonic hearing. The research explored how RF fields can create audible sensations through mechanisms potentially involving bone conduction. This early work helped establish that electromagnetic fields can directly interact with human sensory systems.
Sagov S · 1964
This 1964 study examined how low-frequency electromagnetic currents affected heart rate in patients with hypersensitivity, particularly those with high blood pressure. The research explored whether these electromagnetic exposures could influence cardiovascular responses by decreasing arterial pressure. This represents early scientific investigation into how electromagnetic fields might directly impact heart function and blood pressure regulation.
L. Minecki · 1964
This 1964 Polish study examined workers exposed to microwave radiation between 200-750 MHz and found significantly higher rates of health symptoms compared to unexposed controls. The researcher argued that microwave effects go beyond simple heating, challenging the thermal-only safety standards used at the time.
Allan H. Frey · 1963
This 1963 study by Allan Frey examined how ultra-high-frequency electromagnetic radiation affects humans, particularly focusing on sound perception and acoustic effects. The research investigated whether RF radiation could produce auditory sensations in human subjects. This was among the earliest documented studies of what became known as the 'microwave auditory effect' or 'Frey effect.'
Bielicki Z, Baranski S, Czerski P, Haduch S · 1963
This 1963 Polish study examined workplace difficulties experienced by personnel exposed to microwave radiation in occupational settings. The research analyzed how microwave exposure affected workers' ability to perform their job functions. This represents early documentation of microwave radiation's impact on human performance in workplace environments.
Weiske, Clarence W. · 1963
This 1963 study documented early observations of human sensitivity to low frequency AC electric fields, finding that some individuals experienced effects from these low-energy exposures. The researcher investigated the sources of these fields and methods to reduce them, emphasizing the need for medical and clinical investigation into human health implications.
