Annotation The study of the effects of electromagnetic fields on biological systems has been recently called bioelectromagnetics (BEMs). Though electromagnetic fields have sometimes been associated with potential for harm to the body, there are many BEM instruments and devices re-emerging in the 21st century, based on high voltage Tesla coils, that apparently bring beneficial health improvements to human organisms. The Tesla coil class of therapy devices constitute pulsed electromagnetic fields (PEMF) that deliver broadband, wide spectrum, nonthermal photons and electrons deep into biological tissue. Electromedicine or electromagnetic medicine are the terms applied to such developments in the ELF, RF, IR, visible or UV band. With short term, non-contacting exposures of several minutes at a time, such high voltage Tesla PEMF devices may represent the ideal, noninvasive therapy of the future, accompanied by a surprising lack of harmful side effects. A biophysical rationale for the benefits of BEM healing a wide variety of illnesses including cancer, proposes a correlation between a bioelectromagnetically restored transmembrane potential, and the electron transport across cell membranes by electroporation, with normal cell metabolism and immune system enhancement. The century-long historical record of these devices is also traced, revealing highly questionable behavior from the medical and public health institutions toward such remarkable innovations. This book also reviews the highlights of several BEM inventions but does not present an exhaustive nor comprehensive review of bioelectromagnetic healing devices. It should not be construed as an attempt to prescribe or recommend treatment of any kind. This report is simply designed to provide referenced information on an energy science that is almost impossible to learn about otherwise. Patients should seek medical advice from a qualified medical practitioner at all times.