Peter Nordström (IMAGE) Umea University Caption Peter Nordström Professor och senior consultant (attending) physician, Department of community medicine and rehabilitation, unit of geriatric medicine, Umeå University, Sweden Credit Mattias Pettersson Usage Restrictions Media use 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.