Katherine Schlaerth

The guest, Dr. Katherine Schlaerth, challenges the myth that age limits human potential, arguing that running and physical activity are among the most powerful tools for preserving mental and physical health well into old age. She shares compelling stories of super agers—people over 80 with the cognitive function of 50-year-olds—and highlights how purpose, community, and adventure are just as vital as exercise in aging well. Drawing from her medical work and personal experience, she reveals that the real barriers to longevity aren't biological inevitabilities but mindset, social connection, and the courage to keep going—even when you're the oldest person on the trail. Her own 100-mile races and dedication to running at 99 (and beyond) serve as living proof that 'age is just a number.' She also critiques outdated retirement norms and outdated statistics that don’t reflect today’s healthier, longer-lived population, urging society to redefine what’s possible after 65. The episode underscores that aging well isn’t about avoiding decline—it’s about actively choosing engagement, purpose, and joy. From a 99-year-old neighbor who walks a mile daily to a widow who became a community driver and caregiver, Schlaerth illustrates how small acts of connection and effort can dramatically alter the aging trajectory. She emphasizes that inspiration isn’t reserved for the young—grandparents running 100 miles to attend their grandchild’s first birthday party are the new role models.