The present invention relates to a medical neurological instrument which can be used to improve balance, comprising: (A) a control system for managing energy sources of different nature and (B) an emitter of said energy sources, wherein the emitter is configured to simultaneously apply the different types of energy to a patient by means of transducers, wherein the energies employed are: (i) light energy 18 with a wavelength of between 500 and 700 nm, (ii) light energy 19 with a wavelength of between 701 and 1050 nm, (iii) TENS Energy (Transcutaneous Electrical Nerve Stimulator) 20 with a maximum amplitude of 200 V.