Research investigating how electromagnetic fields (EMF) might influenc
e biological systems has suffered from the absence of a working experi
mental model that defines relationships between all the physical expos
ure parameters required to produce a biological effect. As a result, w
hen these variables are not controlled from one experiment to another,
many experimental results cannot be replicated. Recently, Blanchard a
nd Blackman [4] developed an ion parametric resonance (IPR) model to p
redict how parallel DC and low frequency AC magnetic fields might infl
uence biological systems. Further, the IPR model has something differe
nt from previous models in this area: it is supported by an extensive,
and growing, body of experimental data.