The invention relates to a personal monitoring system for a user, comprising: at least one of a sensor (26, 28) for sensing an internal body parameter of the user and a sensor (14, 26, 28) for sensing an ambient parameter of the ambient around said user, an earpiece (10) for being worn at least in part in the ear canal of the user including an acoustic output transducer (18) for providing sound to the user's ear canal, an evaluation unit (22) communicating with the sensor, means (32, 34) for individually implementing an individually defined regulation for the sensed parameter into said evaluation unit, the evaluation unit being adapted for monitoring sensed values of the parameter over time and comparing them to the individually defined regulations for the sensed parameter and being adapted for continuously judging whether the sensed values of the parameter comply with the individual regulation or not, and a compliance control unit (24) communicating with the evaluation unit and with the output transducer for providing acoustic signals to the user's ear via the output transducer for providing the user with acoustic information regarding the present compliance of the sensed parameter with the implemented individual regulations depending on the judgement made by the evaluation unit.