The longevity gold rush is underway and we hear about the latest reasons for optimism and cynicism from Steve Horvath, the developer of a 'biological clock' that is mostly used by researchers or, the curious, although some experts question whether such measurements are ready for prime time. Horvath explains the science behind his clock, the centenarian connection and the food he says can keep our biological age low.

Guest: Steve Horvath is a biogerontologist, whose research lies at the intersection of epigenetic biomarkers of aging, preclinical and clinical studies, genomics, epidemiology, and comparative biology.

This episode was produced by Moira Welsh, Julia De Laurentiis Johnston, Matthew Hearn and Sean Pattendon.

After years of chatting with Dr. Sinha for the Star's Third Act series, we dig into his perspective on a good old age; the longevity secret he learned from a man who has already lived past 100 and how we can reframe the way governments think about growing old.

GUEST: Dr. Samir Sinha, of Sinai Health and University Health Network and director of health policy research at the National Institute on Ageing.

It is inevitable. Our fear of it can make it worse. Join us for an animated conversation on dying with two unlikely sources. Michael Brooke, a kid from Thornhill who ended up in the '90s LA skateboarding scene before a career in funeral homes and Ondi Timoner, who twice won the Grand Jury Prize at the Sundance Film festival and in 2022, she released her most personal film, called Last Flight Home, about the extraordinary life and death of her father.

GUESTS: Michael Brooke, skateboarder and founder of Concrete Wave. Ondi Timoner, award-winning filmmaker whose documentary on her father's death changed laws for medical assistance in dying.