Tale of Two Fathers: Discipline and Devotion with Dr. Jack Groppel

On this episode of the Your Message Received podcast, host John Duffin interviews Dr. Jack Groppel, author of Mountains Within and a sports science and human performance expert who co-founded the Johnson & Johnson Human Performance Institute. Groppel recounts a childhood shaped by curiosity, solitude, sports, and a difficult, fear-based relationship with his father that drove him to overachieve.…