Arif Nazir, Indiana University (image) Indiana University Caption Arif Nazir, M.D. is an Indiana University Center for Aging Research scientist and an associate clinical professor of medicine at Indiana University School of Medicine. Credit Indiana University Center for Aging Research Usage Restrictions Photo credit to Indiana University Center for Aging Research 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.