Research on aging and extending life and healthspan has ventured beyond humans to our best animal friends – dogs. In less than a year, dog owners may be able to buy a drug that would extend their dog’s life and hopefully keep it healthier for longer. Especially for owners of big dogs with short lifespans, this could be welcome news. And what the drug developers learn about dog aging might contribute to learnings on human aging. Scientists are also building some of the first long-term studies on dog health that will provide detailed information and important insights on our pets’ lives, and maybe our own. Neuroscientist Celine Halioua founded her company Loyal when she was just 24, and is close to getting FDA approval for the company’s first drug. Daniel Promislow, a biogerontologist at Tufts University, founded and leads the Dog Aging Project, collecting data on dogs across the country from all walks of life. The Aspen Institute’s executive vice president, Eliot Gerson, moderates this feel-good conversation recorded at the 2024 Aspen Ideas Festival in June.