Inexpensive, small sensors in tracking devices and smartphones make it possible: The constant monitoring of fitness, wellness or health. 'Quantified Self', the measurement of one's personal physical and behavioral activities, is becoming more and more popular. Users primarily use 'Quantified Self' to optimize their physical activities. However, the data are also of interest for research: From the wealth of data, insights are to be gained for the early detection of diseases and for improved therapies. In addition, stakeholders from the economy and the health sector want to profit from such evaluations. The handling of this sensitive information on health must comply with the legal requirements of data protection.
This interdisciplinary study examines the opportunities and risks of 'Quantified Self'. It shows which devices and services are available and which future developments are to be expected. In addition to medical and technical aspects, social, ethical, legal and economic issues are also analyzed and recommendations are formulated.
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