Head of the department of naturopathy, Immanuel Hospital Berlin. Owner of the endowed Chair for Clinical Naturopathy, Institute for Social Medicine, Epidemiology and Health Economics, Charité Medical University Berlin.\r\n\r\nProf. Dr. Michalsen is head of the department of naturopathy at Immanuel Hospital Berlin as well as owner of the endowed Chair for Clinical Naturopathy at the Institute for Social Medicine, Epidemiology and Health Economics of Charité Medical University, Berlin. As an internist, he did his PhD in cardiology, followed by further medical trainings in the fields of emergency and first-aid medicine as well as naturopathy. His areas of expertise include nutritional medicine, mind-body medicine and lifestyle modification.