Abstract: The present invention is an apparatus for detection of pathological and normal physiological processes in humans and it comprises an electronic nose adapted to detect volatile and non-volatile molecules produced by a human body and a computerized system connected to the electronic nose and to a remote server, and further adapted to receive a molecule detection signals from the electronic nose, and yet further adapted to compare the detected molecules to the molecular combinations stored in its memory, said molecular combinations are indicative of various pathological and/or normal physiological processes in humans.