Drs. Rod Rochrich and Joe Pessa (image) UT Southwestern Medical Center Share Print E-Mail Caption Drs. Rod Rohrich (right) and Joel Pessa have discovered that the human face is made up of individual fat compartments that gain and lose fat at different times and different rates as people age. Facial aging is, in part, characterized by how these separate compartments change as we grow older. Credit UT Southwestern Medical Center Usage Restrictions None Share Print E-Mail 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.