Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
GROWTH AND DEVELOPMENT OF NEONATAL MICE EXPOSED TO HIGH-FREQUENCY ELECTROMAGNETIC FIELDS
William B. Stavinoha, Arvin Modak, Miguel A. Medina, Arthur E. Gass · 1975
1975 study found no growth effects in newborn mice exposed to RF radiation at 10.5 to 26.6 MHz.
Plain English Summary
Researchers exposed 4-day-old mice to high-frequency electromagnetic radiation and tracked their growth for up to 16 weeks. The study found no effects on growth or development in these young mice. This early research from 1975 suggests newborn mice can tolerate certain levels of RF exposure without obvious developmental impacts.
Why This Matters
This 1975 study represents some of the earliest research examining EMF effects on developing organisms, focusing specifically on whether RF radiation disrupts normal growth patterns in newborns. While the researchers found no obvious growth effects, they noted that these tiny mice are much smaller than the wavelengths used and probably absorbed only a relatively small amount of energy. The first study used single 20-minute exposures at 10.5, 19.27 and 26.6 MHz, and the second used 19 MHz for 40 minutes a day for 5 days.
What's particularly relevant today is that this study examined the most vulnerable life stage - newborns - when rapid cell division and organ development make organisms theoretically most susceptible to environmental stressors. The fact that no gross developmental effects were observed provides some reassurance, but the crude measurement tools available in 1975 wouldn't have detected subtle neurological, behavioral, or cellular changes that modern research methods can identify. Today's children face far more complex EMF environments from multiple wireless devices operating simultaneously.
Finding
No effect of irradiation on the growth and development of these neonatal mice was evident.
In their words
“No effect of irradiation on the growth and development of these neonatal mice was evident.”
Figures from the Original Paper
Diagrams extracted from the original research document.
Show BibTeX
@article{growth_and_development_of_neonatal_mice_exposed_to_high_frequency_electromagneti_g6904,
author = {William B. Stavinoha and Arvin Modak and Miguel A. Medina and Arthur E. Gass},
title = {GROWTH AND DEVELOPMENT OF NEONATAL MICE EXPOSED TO HIGH-FREQUENCY ELECTROMAGNETIC FIELDS},
year = {1975},
}