In this episode Mark speaks with Professor Bob Waldinger, director of the Harvard Study of Adult Development, about what 85 years of research reveal about happiness. They explore how close relationships, generosity, attention, and purpose strongly influence both emotional well‑being and physical health.Bob offers practical tips - reach out to someone you miss, practice “social fitness,” cultivate radical curiosity in familiar relationships, and join shared activities or volunteering - to build a more meaningful, happier life at any age.