Dr Eva-Maria Berens (IMAGE) Bielefeld University Caption Public health researcher Dr Eva-Maria Berens is co-lead on the new study. Dr Berens works at Bielefeld University’s Interdisciplinary Centre for Health Literacy Research (ICHL). Credit Photo: Bielefeld University Usage Restrictions The image may only be used with appropriate caption and credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.