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