GDV TESLABIO is a method of diagnosis of the human organism through application of electromagnetic field to fingers contacting a transparent electrode. obtaining high definition digital images of resulting "gas discharge streamers". dividing images into sectors corresponding to various human organs, according to energy meridians of the body. Contour geometry of the resulting images and gas discharge brightness quantify vital energy. GDV TESLABIO application is centered on health as a tool in energy medicine with good efficiency with accompanying chronic processes, furthermore offers the possibility of pre-diagnosis of illness through analysis of energy disbalances in the bio-field. With an additional research toolkit, vital energy of foods/solids and liquids can be registered offering a possibility to link nutritional or homeopathic remedy observation to analysis of the human bio-field state. The human BIO-FIELD is an energetic matrix surrounding the human body. It directly links the cellular activity with the meridian pathways. The BIO-FIELD is not particular to humans since all living things posses it.