From ancient myths to science fiction, humans have long been fascinated by the idea of transcending the limits of our natural lifespan. But what does modern medicine say about the practical, actual possibilities of extending human life? Joining us to explore this tantalizing question is Tony Wyss-Coray, PhD, a neuroscientist and director of the Phil and Penny Knight Initiative for Brain Resilience at Stanford University. While his research focuses on age-related cognitive decline and Alzheime...