Worst Experiment: Brian Johnson Supplement Stack

Steph and Cal are back to take stock of a wild 2025 — the wins, the bad experiments, the money mistakes, the obsessions that stuck, and the questions that refused to go away. From health and work to travel, marriage, and what comes next, this episode is a reset and a preview of the season ahead.

Resources:

• Surferdiary.com 🌊
• Build your own apps course

Quick note: This episode was recorded in December 2025. Much has changed in that month, including that Steph is now at Nvidia! All content published on the SYDLIS podcast (past/present/future) is unaffiliated with Nvidia.