Abstract: A system for inducing a Pavlovian conditioned association of an aroma with a state of satiation, the system comprising at least a physiological sensor, wherein the at least a physiological sensor is configured to detect at least a physiological parameter of a user, and to transmit a detection signal, a control device configured to receive the detection signal from the at least a physiological sensor, wherein the control device is further configured to ascertain that the user is experiencing a physiological state associated with satiation, and to transmit the detection signal to an automatically activated scent diffuser, thereby conditioning the user to associate said scent with satiation, and an automatically activated scent diffuser, wherein the scent diffuser is configured to automatically activate upon receiving the detection signal, wherein automatically activating further comprises diffusing a scent in response to the detection signal.