YC Founder Cracks Europe's Preventive Health Goldmine

Most people treat their bodies like a car they only fix after it crashes. Max Berthelot and Lucis are rewriting that script by turning longitudinal blood data into a high-margin, preventive software play. In this episode, we sit down with Max Berthelot, founder of Lucis (YC S25), to discuss why "Function Health for Europe" is one of the most compelling arbitrage opportunities in the venture world. We dive into the cultural shift of paying for health in Europe, the technical challenge of scaling doctor-supervised AI, and the relentless execution required to expand across five countries in record time. What you’ll learn: - Why blood data is the "Gold Rush" of the next decade. - The YC strategy for conquering fragmented European markets. - How to maintain "San Francisco Velocity" while based in Paris. - Why AI + Wearables are currently overhyped (and what's missing). - The 5-day fundraising sprint: How Lucis closed their round during YC. 📌 Watch now and subscribe for more smart, fast, founder-first interviews. Chapters: 00:00 Introduction to Preventive Health and Function Health 00:45 Welcome to Lobster Talks Podcast 01:32 Meet Max Berthelot and Lucis 02:23 The Importance of Longitudinal Health Tracking 05:02 Challenges and Opportunities in European Healthcare 09:14 The YC Experience and Decision to Stay in Europe 12:54 Maintaining YC Culture in Europe 18:13 The Role of AI in Healthcare 22:14 Expansion Across Europe 23:00 International Expansion Playbook 23:53 Challenges in European Market 25:35 Relentless Execution and Metrics 28:35 Trends in YC Healthcare Startups 32:22 Fundraising Journey and AI Impact 36:11 Overhyped Trends in Health Tech 39:20 Conclusion and Final Thoughts 🎧 Listen on the go: Spotify: https://open.spotify.com/show/1u1JyRKH8JYFjhBkvTUOAP Apple: https://apple.co/4cZ8RMm My other YouTube Channel: https://www.youtube.com/@lobstercap