A method, a computer readable media and a hand-held device, the hand-held device may include a first sensor that is positioned such as to be contacted by a first hand of a user when the user holds the hand-held device； a second sensor that is positioned such as to be contacted by a second hand of the user when the user holds the hand-held device； wherein at least one sensor of the first sensor and the second sensor is a hybrid sensor that comprises an electrode, an illumination element and a light detector； and a health monitoring module arranged to process detections signals from the electrode and from the light detector such as to provide processed signals that are indicative of a state of the user.
