In this episode, Shahid speaks with Dr Roger Mazze — Clinical Professor at the University of Minnesota Medical School and Head of WHO Collaborating Centre in Diabetes Translation — whose pioneering work helped reshape how diabetes is understood and treated around the world. Together they explore what it means to turn medical evidence into real-world impact, why passion matters as much as expertise, and how mentorship can guide students and early career professionals through obstacles and opportunities. The conversation ranges from global health and innovation to Rotary, service and the importance of building strong roots before reaching for the next step.