At Feinberg School of Medicine’s Potocsnak Longevity Institute, doctors are searching for a way to delay the aging process. Several research units work together at the institute, Vaughan said. These include the Human Longevity Laboratory, Potocsnak Center for Aging & HIV, Center for Population Science & Aging, Claude D. Pepper Older Americans’ Independence Center, Center for Basic and Translational Science and Center for Nanoscience & Aging. The Human Longevity Laboratory is a unique clinical component of the institute, which has collected functional and physiological measures of age in more than 300 people. Part of the Potocsnak Center for Aging & HIV is located in Feinberg’s Center for Human Immunobiology, on the 15th floor of the Tarry Research & Education Building.