Priv.-Doz. Dr. med. Christian Kessler has been working as a doctor and research assistant in the Department of Naturopathy and the University Outpatient Clinic for Naturopathy since 2009. Since 2013 he has been a senior physician responsible for research coordination and project management. He also conducts research at the Immanuel Hospital Berlin as part of the endowed professorship for clinical naturopathy at the Institute for Social Medicine, Epidemiology and Health Economics at the Charité Universitätsmedizin Berlin. He is an expert in traditional Indian medicine and Ayurveda. He is also a qualified Indologist.