Why do our bodies age?

As researchers continue their search for the fountain of youth, they’re turning their attention to an unlikely source: worms. Coleen T. Murphy is professor of genomics and molecular biology at Princeton and director of both the university’s Glenn Foundation for Research on Aging and the Simons Collaboration on Plasticity in the Aging Brain. She joins host Krys Boyd to discuss how worms and other simple organisms offer insights into the aging process and how we might slow it down. Her book is “How We Age: The Science of Longevity.”