Why Do Cells Age and Die? (video) University of Southern California Share Print E-Mail Loading 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 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.