In this episode, we sit down with Dr. Jack Kruse, a neurosurgeon with over 30 years of experience, to explore his transformative journey from centralized medicine to decentralized health and his discovery of bitcoin as a tool for freedom and time preservation. Jack discusses the flaws in traditional medicine, the significance of circadian biology, and why sunlight and sleep are critical for optimal health. He explains his perspective on bitcoin as a “time machine” and the parallels between decentralized money and biology. The conversation touches on the importance of self-custody, the role of technology in shaping health outcomes, and whether Americans should consider moving to El Salvador for greater personal freedom. Jack also shares insights on the challenges of population growth, the potential to extend human lifespan, and how bitcoiners can prioritize health to secure their future. SUPPORT THE PODCAST: → Subscribe → Leave a review → Share the show with your friends and family → Send us an email [email protected] → Learn more about Unchained: https://unchained.com/?utm_source=youtube&utm_medium=video&utm_campaign=TBF-podcast-description → Book a free call with a bitcoin expert: https://unchained.com/consultation?utm_source=youtube&utm_medium=video&utm_campaign=TBF-podcast-description → Buy bitcoin in an IRA—sign up today and get your first year free: unchained.com/frontier TIMESTAMPS: 0:00 Intro 1:06 Jack Kruse's background and medical journey 3:32 Decentralized medicine: what it means 9:20 Why centralized medicine is broken 11:19 The importance of circadian biology 18:25 Bitcoin and time: connecting decentralized money to health 23:11 "Bitcoin is a time machine": explained 33:53 How sunlight and darkness affect health 37:10 The role of technology in health outcomes 43:08 Living a healthier, longer life: practical advice 49:47 El Salvador: should Americans move there? 57:29 Is bitcoin a time machine for everyone? Victor’s story 1:01:13 The case for decentralizing your life WHERE TO FOLLOW US: → Unchained Twitter: https://twitter.com/unchainedcom → Unchained LinkedIn: https://www.linkedin.com/company/unchainedcom  → Unchained Newsletter: https://unchained.com/newsletter  → Joe Burnett’s Twitter: https://twitter.com/IIICapital → Dr. Jack Kruse’s Twitter: https://x.com/DrJackKruse