Mathias Steinach1, Julia Lichti1,2, Martina Anna Maggioni1,3, Michael Fähling2. 1. Institute of Physiology, Center for Space Medicine and Extreme Environments Berlin, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany. 2. Institute of Vegetative Physiology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany. 3. Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.