1. A system for regulating a physiological function controlled by a hypothalamus of an individual, the system comprising: a vestibular stimulation element adapted to apply a stimulation to at least a portion of a vestibular system of an individual; a response module adapted to enable such an individual to provide a subjective input based upon a perceived response of the hypothalamus in regulating the physiological function, the response of the hypothalamus being in response to the stimulation applied to the vestibular system; and a control unit that controls the vestibular stimulation element such that the stimulation applied by the vestibular stimulation element is adjusted based on the subjective input provided to the response module.