When ELF-EMF (magnetic fields and/or electric currents) and RF-EMF are applied to living tissue for therapeutic effects, the signal characteristics and field strengths are produced and directed carefully.  When EMF therapies are appropriately selected and properly executed, they may elicit beneficial effects.  Not all studies of EMF modalities show benefit, but many do; some demonstrate no, mixed, or adverse effects.

This map offers links to studies and reports -- of proposed mechanisms, cases, results --  but also brings to mind important questions.  What occurs in tissues when ambient EM exposures are high, variable, nonspecific, intermittent, mixed, and cumulative?  What can we learn about the effects of uncontrolled exposures by studying the effects of controlled ones?