NEURONAL STIMULATION BY PULSED MAGNETIC FIELDS IN ANIMALS AND MAN
Reginald G. Bickford, Benjamin D. Freming · 1965
Powerful pulsed magnetic fields can directly trigger muscle contractions in humans through electromagnetic induction, proving EMF can affect biology without heating.
Plain English Summary
This 1965 study tested powerful pulsed magnetic fields (20,000-30,000 gauss) on animals and human volunteers, finding they could trigger muscle contractions by inducing electrical currents in nerve tissue. The research demonstrated that extremely strong magnetic pulses can directly stimulate the nervous system through electromagnetic induction.
Why This Matters
This early research reveals something crucial that often gets overlooked in EMF discussions: the human nervous system is fundamentally electrical, and sufficiently strong electromagnetic fields can directly interfere with its function. While the 20,000-30,000 gauss fields used here are thousands of times stronger than typical household EMF exposures, the study establishes the basic principle that external electromagnetic fields can trigger involuntary biological responses.
What makes this particularly relevant today is that it demonstrates electromagnetic fields don't need to cause heating to affect living tissue. The muscle contractions occurred through induced electrical currents, not thermal effects. This challenges the outdated regulatory assumption that only heating matters for EMF safety. While your daily EMF exposures are far weaker than these experimental levels, they operate on the same fundamental principle of electromagnetic induction in conductive biological tissue.
Exposure Information
Specific exposure levels were not quantified in this study.
Show BibTeX
@article{neuronal_stimulation_by_pulsed_magnetic_fields_in_animals_and_man_g7230,
author = {Reginald G. Bickford and Benjamin D. Freming},
title = {NEURONAL STIMULATION BY PULSED MAGNETIC FIELDS IN ANIMALS AND MAN},
year = {1965},
}