Biofeedback is a procedure aimed at increasing a subject's proprioception based on the principle of "physiological mirroring". The subject has the opportunity to receive visual and/or auditory feedback in real time correlated to one or more physiological parameters acquired. The goal is to find a strategy to modify these parameters and learn from the feedback received to have a greater awareness of his/her own body. The various biofeedback trainings aim to normalize the functional state of the various body systems such as the central nervous system (CNS), the cardiovascular system, and others. In Neurofeedback, in particular, the subject is provided with real-time information on his/her brain rhythms (EEG) and brain functioning; the brain, thanks to its neuroplasticity, takes note of this information and gradually modulates its activity in response to it.