A device (1) for determining a stress related condition of a person and providing feedback about this condition comprises body sensors (20) for detecting stress related body parameters, a stress assessing element (40), and a feedback device, wherein the stress assessing element (40) is designed for processing input provided by the body sensors (20) and for determining control parameters for controlling the feedback device, on the basis of the input provided by the body sensors (20). The body sensors (20) are integrated in a textile structure, so that the tested person does not sense the sensors (20), as a result of which there is no chance that the test results get influenced by an interaction between the device (1) and the person.