Why Do Cells Age and Die? (VIDEO) University of Southern California This video is under embargo. Please login to access this video. Caption USC Viterbi School of Engineering Professor Nick Graham discusses his lab's recent research on the metabolism of senescence and the implications for aging and cancer. Credit Dennis Lee, USC Viterbi School of Engineering 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.