Dr. Steven Heymsfield (IMAGE) Pennington Biomedical Research Center Caption Dr. Steven Heymsfield, Professor of Metabolism & Body Composition at Pennington Biomedical Credit PBRC Usage Restrictions None 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.