Abstract: A system and method are provided for diagnosing, therapy, and/or prevention of a plurality of diseases. The method is based on an assessment of data, reflecting the level of inner bioenergy produced by a human body. The system performs a multichannel data acquisition, processes the data, generates a diagnosis, and provides a prescription for the therapy. The system exists in several embodiments and generally includes a set of diagnostic and therapy electrodes, an input demultiplexer, analog-to-digital converter, output demultiplexer, a computer, power and control units, and a portable data acquisition unit.