In this interview, biologist and aging expert Dr. Steven Austad joins host Don MacPherson to discuss how and why we age, various ways to extend human life, and ethical questions that accompany a 100-year life expectancy. They also dive into medical treatments that show signs of slowing the aging process, the impossibility of immortality, and the societal changes that will occur if we all live longer.

Dr. Austad has dedicated his career to understanding the science of how and why we age. He is a distinguished professor and Chair of the Biology Department at the University of Alabama at Birmingham. He has also authored numerous books, academic papers, and articles on aging.