Two newsletters.
One mission.
One is for serious readers. The other is for builders who know health care is harder than a deck.
The Longevity Letter
Subscribe and get the Supplement Stack: the short list of supplements that earn their place after my evidence, safety, and follow-through test. Then stay for the weekly note: studies, protocols, and claims I would not buy at face value.
Free. Every Friday. Unsubscribe anytime.
The CareCore Stack
A note for founders, innovators, and clinicians building health products with actual medical consequences: clinical workflows, regulation, unit economics, and where glossy health products fall apart.
Free. Weekly. Unsubscribe anytime.
What you’ll get
The Longevity Letter
Studies with consequences
Not every paper deserves a protocol. I write about the ones that might change care, and the ones to leave alone.
Protocols with stop rules
Supplements, training, labs, and medications need a reason to start and a reason to stop.
Clinical notes
What real patients ask, where standard advice gets thin, and how I think through tradeoffs.
The CareCore Stack
Care models
How longevity services are staffed, priced, documented, and kept medically honest.
Regulatory drag
The boring parts that decide whether a health product can survive contact with patients.
Builder's notes
What I am learning while building CareCore, including the parts that do not fit a launch post.
CareCore Stack
Starts April 2026
First issues start in April 2026. Subscribe above if you want the working notes, not the launch-post version.