Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
EFFECTS OF 2450 MHZ MICROWAVE RADIATION ON HUMAN BLOOD COAGULATION PROCESSES
No Effects Found
Richard F. Boggs, Albert P. Sheppard, Alma Jeanne Clark · 1972
Blood clotting remained normal after 24-hour exposure to high-intensity 2450 MHz microwave radiation in laboratory conditions.
Plain English Summary
Summary written for general audiences
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.
Cite This Study
Richard F. Boggs, Albert P. Sheppard, Alma Jeanne Clark (1972). EFFECTS OF 2450 MHZ MICROWAVE RADIATION ON HUMAN BLOOD COAGULATION PROCESSES.
Show BibTeX
@article{effects_of_2450_mhz_microwave_radiation_on_human_blood_coagulation_processes_g4574,
author = {Richard F. Boggs and Albert P. Sheppard and Alma Jeanne Clark},
title = {EFFECTS OF 2450 MHZ MICROWAVE RADIATION ON HUMAN BLOOD COAGULATION PROCESSES},
year = {1972},
}Quick Questions About This Study
No, this study found no significant changes in blood clotting time, platelet count, or clot strength after exposing human blood plasma to 2450 MHz radiation for up to 24 hours at power densities up to 280 mW/cm².
Researchers exposed human blood plasma to 2450 MHz microwave radiation for up to 24 hours continuously without observing significant changes in coagulation processes, suggesting blood clotting mechanisms are relatively resistant to this frequency.
The study tested power densities up to 280 mW/cm² of 2450 MHz microwave radiation. This is significantly higher than typical exposure levels from consumer wireless devices, which are usually measured in microwatts per square centimeter.
Yes, the study found that microwave heating to 37-42°C produced little change in blood clotting, while conventional heating to the same temperatures increased clotting time and decreased clot strength as expected from thermal effects alone.
No non-thermal effects on blood coagulation were detected. When temperatures remained below normal body temperature (37°C), the 2450 MHz microwave radiation produced no significant changes in platelet count, coagulation time, or clot strength.