Due to the differentiating ways of thinking and practise of biofeedback or bio resonance therapy and classic medicine , the conventional medicine has its strengths in operations and chemical therapies against illnesses based on acute bacteria; Whereas the biofeedback and the bio resonance therapy have developed their strengths in the area of chronicle diseases. The famous quote by Cartesian “Humans are machines” was the motto of the development of the conventional medicine in much contrast to the biofeedback. By now, in the view of biofeedback and bio resonance therapy, the element itself is less important but focus is laid upon the relation and harmony between the elements which are of concern for the biofeedback. In other words: holistic thinking is the very core of biofeedback and bio resonance therapy in contrast to the reductionist approach of conventional medicine.