Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 773 studies (Human Studies) from Glaser RF/Microwave Archive
Hubner · 1950
This 1950 study examined bedside ultrashort wave diathermy treatment, which used radiofrequency electromagnetic fields for therapeutic heating of body tissues. The research investigated medical applications of RF energy that operated at frequencies similar to those used in modern wireless devices. This represents early documentation of intentional human exposure to RF electromagnetic fields for therapeutic purposes.
T. S. England · 1950
This 1950 study measured how microwave radiation at three different wavelengths (1.27 cm, 3.18 cm, and 10 cm) interacts with human body tissues taken from surgical operations. Researchers analyzed the dielectric properties of various tissues to understand how microwaves penetrate and affect different parts of the human body. This foundational research helped establish how electromagnetic fields interact with biological tissues.
J. F. HERRICK, D. G. JELATIS · 1950
This 1950 study examined how microwave energy penetrates and heats different human tissues for medical diathermy treatments. Researchers measured the dielectric properties of various tissues to understand how they absorb microwave radiation. The findings helped establish early safety parameters for therapeutic microwave heating in medical settings.
Jerome W. Gersten, Khalil G. Wakim, Frank H. Krusen · 1950
This 1950 study examined how microwaves heat human tissue and found that skin reflects most of the energy, making heating inefficient. Researchers proposed using impedance matching devices on the skin to improve energy transfer and enable targeted heating of specific tissue areas.
Gore I, Isaacson NH · 1949
This 1949 autopsy study examined 17 patients who died from hyperpyrexia (extremely high fever) during fever therapy treatments. Researchers analyzed tissue damage and organ changes to understand how extreme heat affects the human body. While not directly EMF-related, this research provides important baseline data on thermal effects that helps inform modern RF exposure safety standards.
Herman J. Flax, Ruth N. Miller, Steven M. Horvath · 1949
This 1949 study examined how local shortwave diathermy (a medical heating device using radio frequencies) affected tissue temperature and peripheral blood flow in 10 normal men aged 22 to 35. Twenty minutes of treatment raised thigh surface temperature by a mean of 3.1 degrees. Four types of blood flow response were observed: no vasodilation in the distal area (3 subjects), gradual vasoconstriction (3), marked vasodilation (2), and no change during application with an increase occurring later (2). The authors noted that earlier reports of diathermy's effect on blood flow disagreed.
England TS, Sharples NA · 1949
This 1949 study investigated how microwave radiation interacts with human body tissues by measuring their dielectric properties (how materials respond to electromagnetic fields). This was pioneering research that helped establish the scientific foundation for understanding how microwaves penetrate and affect biological tissues. The work provided early insights into how electromagnetic fields behave in the human body.
Gersten JW, Wakim KG, Herrick JF, Krusen FH · 1949
This 1949 study examined how microwave radiation affects blood circulation and tissue temperature in humans, marking early research into microwave therapeutic applications. The researchers explored microwaves in the 300 to 300,000 megacycle frequency range using newly developed magnetron technology originally created for military radar systems. This represents some of the first documented human exposure to controlled microwave radiation for medical purposes.
Charles S. Wise · 1948
This 1948 study measured blood flow changes in human forearms during radiofrequency diathermy treatment using plethysmographic recordings. The research challenged earlier findings that suggested RF heating decreased blood flow, instead confirming that tissue heating increases circulation as expected from basic physiology.
E. van Someren, E. C. Rollason · 1948
This 1948 study measured radiation emissions from welding arcs and found they produce the same intensity of radiation at the welder's eye as direct sunlight. Researchers used specialized equipment including vacuum thermopiles and absorption cells made from bull's eye tissue to quantify the radiation exposure. The findings highlighted a significant occupational health concern for welders who face intense electromagnetic radiation during their work.
Rajewsky, V., Schwan, H. · 1948
This 1948 research by Bajevsky measured how human blood responds to ultra-high frequency electromagnetic radiation by studying its dielectric properties and electrical conductivity. The study examined how blood tissue interacts with radiofrequency fields, providing early data on how biological materials behave when exposed to EMF. This foundational work helped establish baseline measurements for understanding how electromagnetic energy interacts with human tissue.
OSBORNE, SL, FREDERICK, MS · 1948
This 1948 study investigated how 12-centimeter wavelength microwave radiation heats human and animal tissues, likely for medical diathermy applications. The research examined tissue heating effects from high-frequency electromagnetic fields, providing early scientific documentation of how microwave energy interacts with biological tissues. This work represents foundational research into microwave heating mechanisms that would later inform both medical applications and safety standards.
Steven M. Horvath, Ruth V. Miller, Bruce K. Hutt · 1948
This 1948 study by Horvath examined how microwave radiation heats human tissue, exploring temperature gradients and thermal effects. The research investigated microwave radiation's potential for therapeutic heating applications, particularly in diathermy treatments. This represents some of the earliest scientific documentation of how microwaves interact with human tissue.
William Bierman, M.D. · 1948
This 1948 medical review examined the therapeutic use of artificially induced fever (hyperthermia) to treat infections like gonorrhea and syphilis before antibiotics became widely available. The study assessed fever therapy's effectiveness compared to emerging treatments like penicillin and sulfonamides. This represents early medical research into controlled heat exposure for therapeutic purposes.
Donald L. Rose, Sedgwick Mead · 1948
This 1948 study examined how electrical currents used in medical therapy affect human sensation and pain levels. Researchers measured the tactile sensations and pain responses when electric current passed through the body, aiming to find ways to maximize therapeutic muscle contractions while minimizing patient discomfort.
Hermann Schwan · 1948
This 1948 study by Hermann Schwan examined how temperature affects blood's dielectric properties when exposed to extremely low frequency electromagnetic fields (10-1000 meter wavelengths). The research found that blood's dielectric constant remains stable across different temperatures, indicating that electromagnetic field interactions with blood depend on its cellular structure rather than thermal effects.
CIGNOLINI, P · 1947
This 1947 medical research examined how to measure and calculate proper doses of shortwave radio frequency energy used in therapeutic treatments. The study focused on dosimetry methods for shortwave diathermy, a common medical practice that uses RF energy to heat deep tissues for pain relief and healing.
K. S. Lion · 1947
This article examines how the presence of metallic materials in body tissues affects the safety and efficacy of diathermy treatment using radiofrequency and short-wave energy. The research addresses thermal effects and potential complications arising from metal-tissue interactions during therapeutic diathermy applications.
URSULA M. LEDEN et al. · 1947
This 1947 study from the Mayo Foundation investigated the heating and circulatory effects of micro-waves at 3,000 megacycles per second (10 centimeter wavelength) in trained dogs and anaesthetized animals, examining their therapeutic potential. A 20-minute exposure at 65 watts and 5 centimeters distance raised temperatures 3-5°C in skin, subcutaneous tissue and muscle to 2 centimeters depth, and femoral vein blood flow increased by an average of 109 percent after exposure.
JAMES D. HARDY, HAROLD G. WOLFF, HELEN GOODELL · 1947
This 1947 research by Hardy developed methods for measuring human pain sensitivity and discrimination, establishing foundational principles for quantifying subjective pain experiences. The study focused on how people distinguish between different intensities of painful stimuli and created measurement scales for pain research. This work laid important groundwork for understanding how humans perceive and respond to potentially harmful stimuli.
F. C. HENRIQUES Jr., Ph.D. · 1947
This 1947 research by Henriques established fundamental mathematical principles for predicting how heat exposure causes permanent skin damage. The study developed rate process equations to determine when thermal injury becomes irreversible in human skin tissue. This foundational work created the scientific framework still used today to assess thermal damage from any heat source.
Grant E. Ward, M.D. · 1947
This 1947 medical study examined electrosurgery techniques, which use high-frequency electrical currents to cut tissue and control bleeding during surgical procedures. The research focused on methods like electrocoagulation and electrodesiccation, representing early documentation of how radiofrequency energy interacts with human tissue in medical settings.
T. M. Caffaratto · 1946
This 1946 study investigated changes in white blood cells (leukocytes) following shortwave diathermy treatment in gynecological patients. The research examined how radiofrequency energy used in medical therapy affected immune cell counts. This represents early documentation of biological effects from therapeutic RF exposure.
Maj Bernard J. Lidman, MC, Capt Clarence Cohn, MC · 1945
This 1945 Naval Research Laboratory study examined 45 radar operators exposed to radar emissions for up to 9 years, finding no blood abnormalities or health effects. Parallel animal studies on guinea pigs also showed no reproductive, behavioral, or tissue changes from heavy radar exposure.
Daily LE · 1943
This 1943 clinical study examined laboratory personnel exposed to radar and high-frequency radio equipment, conducting blood counts and physical examinations to assess health effects. The research represents one of the earliest documented investigations into occupational EMF exposure from radar technology. This wartime study established a foundation for understanding potential health impacts from high-powered electromagnetic radiation sources.