Browse 8,700 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 2,998 studies (Human Studies)
Herman P. Schwan, Edwin L. Carstensen, Kam Li · 1953
This 1953 study examined how electromagnetic diathermy (medical heating) affects fat and muscle tissue layers in humans. Researchers found that electromagnetic currents selectively heat fatty tissue more than muscle, even at high frequencies, creating challenges for medical treatments trying to heat deeper muscle tissue.
J. F. Herrick, F. H. Krusen · 1953
This 1953 research by J.F. Herrick examined how microwaves affect human physiology and pathology, focusing on tissue heating, blood flow changes, and potential harmful effects. The study represents early scientific investigation into microwave biological effects, decades before widespread consumer microwave technology. This foundational work helped establish our understanding of how electromagnetic radiation interacts with human tissue.
EMILY E. MUELLER, ROBERT LOEFFEL, SEDGWICK MEAD · 1953
This 1953 study examined how to use electrical currents to measure pain thresholds in humans, focusing on standardizing the electrical stimulus method. Researchers investigated skin impedance (electrical resistance) as a factor in creating reliable, repeatable pain threshold measurements. The work aimed to establish valid testing protocols for studying human pain sensitivity using electrical stimulation.
Boyle AC, Cook HF, Woolf DL · 1952
This 1952 research by Boyle investigated the biological effects of microwave radiation on humans, building on earlier microwave research during an era when this technology was rapidly expanding. The study examined how microwave energy interacts with human tissue, contributing to early understanding of electromagnetic field effects on biological systems.
H. F. Cook · 1952
This 1952 study measured how microwave frequencies (1.7 to 24 billion cycles per second) interact with water and human blood. Researchers found that blood's electrical properties are primarily determined by its water content, and that microwaves affect blood the same way they affect pure water.
Cook, H.F. · 1952
This 1952 study investigated human pain thresholds for microwave and infrared radiation exposure. Researchers found that people feel burning pain at specific skin temperatures, and that pain medications like aspirin and morphine don't change the temperature threshold but do increase how much energy is needed to trigger pain.
М. А. Качковский · 1952
This 1952 Soviet study examined how ultra-high frequency (UHF) electromagnetic fields affected human skin and blood vessel responses. The research focused on measuring changes in skin reactivity and blood vessel function when people were exposed to UHF radiation. This represents some of the earliest documented research into how radiofrequency fields interact with human circulatory and skin systems.
H. F. COOK · 1952
This 1951 research investigated the pain threshold levels for both microwave and infrared radiation exposure in human subjects, measuring skin temperature responses to determine safety limits. The study represents early scientific recognition that electromagnetic radiation could cause immediate biological effects, including pain responses. This foundational work helped establish understanding of how microwave energy interacts with human tissue at levels that cause noticeable sensations.
Hirsch FG, Parker JT · 1952
This 1952 case report documented bilateral cataracts (lenticular opacities) in a technician who operated microwave generators. The study compared microwave radiation effects to conventional diathermy, finding that living cells respond by converting microwave energy to heat, though with important differences in tissue penetration.
William B. Clark · 1952
This 1952 clinical study evaluated microwave diathermy as a therapeutic treatment for eye conditions, including senile macular degeneration and retrobulbar neuritis. The research represents early medical use of microwave radiation for heating deep tissues to treat various ophthalmological disorders. This work provides historical context for understanding both therapeutic microwave applications and potential biological effects of microwave exposure on human tissue.
FREDERIC G. HIRSCH, JOHN T. PARKER · 1952
This 1953 case study documented bilateral lenticular opacities (lens clouding) in a technician who operated microwave generators. This represents one of the earliest documented cases linking occupational microwave exposure to eye damage. The research helped establish that microwave radiation could cause cataracts in humans under certain exposure conditions.
H. F. Cook · 1952
This 1952 study compared how microwave radiation (1.7-24 billion cycles per second) interacts with pure water versus human blood. Researchers found that blood's electromagnetic properties come entirely from its water content, with blood cells affecting how microwaves penetrate tissue. The work established fundamental principles for understanding how microwave radiation behaves in biological systems.
Clark WB · 1952
This 1952 clinical study examined the use of microwave diathermy (therapeutic heating) for treating eye conditions, including macular degeneration and retinal disorders. The research represents early medical applications of microwave energy in ophthalmology. This historical work provides insight into how microwaves were first used therapeutically, decades before concerns about EMF health effects emerged.
Cook HF · 1952
This 1952 study measured temperature increases in human body parts when exposed to microwave radiation at 10 and 9.4 cm wavelengths. Researchers found that microwave exposure caused measurable heating in human tissues, with blood flow affecting how quickly tissues warmed up. The study established early scientific evidence that microwave radiation produces thermal effects in the human body.
Herman P. Schwan, Edwin L. Carstensen · 1952
This 1952 research by H.P. Schwan examined how to measure electrical and acoustic properties of human tissues during diathermy (medical heating with radio frequency energy). The study developed techniques to understand how RF energy penetrates and heats biological tissues, particularly blood. This foundational work helped establish scientific methods for studying electromagnetic field interactions with the human body.
B. ALAJMO · 1951
This 1951 Italian ophthalmology study examined the effects of microwave radiation on human eyes. Published in the Italian Journal of Ophthalmology, it represents early medical research into how electromagnetic fields might affect vision and eye health. The study's timing makes it one of the earliest investigations into microwave effects on human biology.
Cook, H.F. · 1951
This 1951 study measured how human tissues interact with microwave radiation at frequencies used in early radar and communications (6-17 cm wavelengths). Researchers found that tissue electrical properties could be predicted using established physics equations when accounting for the body's natural ionic conductivity. The work provided foundational data on how microwaves penetrate and interact with human biological systems.
H. F. Cook · 1951
In 1951, researchers exposed human subjects to microwave radiation at 10 and 9.4 cm wavelengths and measured the temperature increases in skin and deeper tissues. The study found that microwave exposure caused measurable heating in human tissues, with blood flow changes affecting how heat spread through the body. This groundbreaking research established early evidence that microwave radiation produces biological effects in humans through tissue heating.
H. F. Cook · 1951
In 1951, researcher H.F. Cook measured how four types of human tissues respond to microwave radiation at frequencies corresponding to wavelengths of 6-17 centimeters. The study found that human tissues have specific electrical properties when exposed to microwaves, with behavior influenced by water content and salt concentrations in cells. This was groundbreaking early research establishing how electromagnetic fields interact with living human tissue.
H. F. Cook · 1951
This 1951 study by H.F. Cook examined how different types of human tissues respond to microwave frequencies by measuring their dielectric properties. The research established fundamental data about how microwaves interact with biological tissues, laying groundwork for understanding electromagnetic field absorption in the human body.
Albert DE LOZ · 1951
This 1951 French study examined how high-frequency electromagnetic waves, including microwaves and short waves, influenced cholesterol levels in humans. The research explored potential therapeutic applications of electromagnetic fields for treating high cholesterol, representing early investigation into EMF effects on metabolic processes.
George Smith · 1950
This 1950 study by George Smith examined how diathermy currents (radiofrequency energy used for medical heating) interact with metal implants placed in the body wall. The research focused on understanding potential heating effects and safety concerns when RF energy encounters metallic medical devices. This represents early recognition that electromagnetic fields can create unique risks for people with implanted metals.
Bruce B. Grynbaum, Raymond S. Megibow, William Bierman · 1950
Researchers in 1950 used a specialized blood flow measuring device to study how short wave diathermy (a form of radiofrequency heating used in physical therapy) affects circulation in human fingers. They tested 10 healthy people to settle debates about whether this RF heating treatment actually improves blood flow in extremities.
A. C. BOYLE, H. R. COOK, T. J. BUCHANAN · 1950
This 1950 British investigation by A.C. Boyle represents one of the earliest scientific examinations of microwave radiation's biological effects on humans. Published just five years after World War II, when radar technology introduced widespread microwave exposure, this preliminary research helped establish the foundation for understanding how these electromagnetic fields interact with human biology.
England TS · 1950
This 1950 study by England examined how the human body interacts with microwave radiation in the 1-10 centimeter wavelength range, measuring the body's dielectric properties. The research established foundational data on how electromagnetic fields at these frequencies behave when they encounter human tissue. This work provided early scientific understanding of microwave absorption and penetration in biological systems.