Stephen Boehm, Indiana University (IMAGE) Indiana University Caption A new IU study examining effects of low-level developmental lead exposure in mice could explain why some people dependent on alcohol return to using. Credit Indiana University Usage Restrictions None License Licensed 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.