An apparatus for generating biofeedback, in particular during a relaxation exercise for lowering blood pressure, comprises at least one interface for receiving a pulse wave signal that represents a pressure pulse or volume pulse of a pulse wave in a blood circulation system as a function of time and an ECG signal. The apparatus comprises an evaluation device that is configured to determine a pulse transit time on the basis of the pulse wave signal and the ECG signal, perform an evaluation of a pulse wave form of the pulse wave signal and generate the biofeedback depending on the pulse transit time and/or the evaluation of the pulse wave form. The apparatus comprises an output interface for providing the biofeedback.