Matthew Rehrig on Type 1 Diabetes, Gym Ownership & Fatherhood | Hidden Foundations Ep. 19

In this episode of Hidden Foundations, Kendall is joined by Matthew Rehrig, a gym owner, father, and Type 1 diabetic, to unpack the pressure behind building a business while managing a relentless health condition. Matt shares how 2015 changed everything: a new baby, a new house, a young marriage, a risky gym investment, and the stress that surrounded his early years as an entrepreneur. Six months after opening the gym, he was diagnosed with Type 1 diabetes, forcing him to manage blood sugar, insulin, workouts, family life, and business ownership every day. Kendall and Matt also explore door-to-door sales, fitness coaching, confidence, keeping promises to yourself, raising three sons, his complicated relationship with his father, and how early family patterns shape the way we lead, parent, and survive pressure.Chapters: 00:00 Cold Open: Fitness, Failure, and Diabetes00:43 Meet Matthew Rehrig01:57 Gym, Marriage, Risk, and Scrappy Beginnings10:23 Family Drive, Baseball, and Door-to-Door Sales14:35 Type 1 Diabetes Diagnosis30:47 Living on the Blood Sugar Tightrope36:19 Coaching Confidence and Keeping Promises51:17 Fatherhood, Regret, and Breaking PatternsHidden Foundations is a weekly podcast hosted by entrepreneur and investor Kendall Schoenrock, examining how family systems, early adversity, and childhood dynamics quietly shape high-performing adults. Each conversation uncovers the “invisible wiring” behind resilience, ambition, leadership, and grit — told through candid stories from entrepreneurs, athletes, creators, and leaders.Guided by the thesis that strength is forged early at home, the show uses a consistent framework to explore emotional environments, money narratives, family roles, conflict patterns, and early challenges. Every episode delivers at least one practical, repeatable insight for parents, leaders, and anyone seeking to understand how greatness is built long before it’s visible.Subscribe to Our Newsletter: https://hiddenfoundations.com/#newsletterLearn more or connect with Kendall:Website: https://kendallschoenrock.com/LinkedIn: https://www.linkedin.com/in/schoenrock/SilverRock Ventures: https://silverrockventures.com/about-us/YouTube: youtube.com/@HiddenFoundationsPodSpotify: https://open.spotify.com/show/6VKN6BBbuVxNDl4zKh4E3O?si=0c56c9aebfaf402eApple Podcasts: https://podcasts.apple.com/us/podcast/hidden-foundations/id1895154229#HiddenFoundations #Type1Diabetes #FitnessEntrepreneur