A physician-builder's field notes
Issue 003 · Consumer longevity
Apple Gets Into Longevity. What Happens After the Score?
I’m probably buying the watch. I’m harder to sell on another health score.
Why this exists
Health innovation, read as a system.
The CareCore Stack is for people building, buying, funding, or caring inside health care. Each issue starts with one live signal and follows it through the clinical evidence, business incentives, and operating choices beneath it.
Written by Hillary Lin, MD — a physician and founder working at the edge of care delivery, evidence, and product design.
From the Stack
The latest field note
September 10, 2026 · 7 min read
Apple Gets Into Longevity. What Happens After the Score?
I’m probably buying the watch. I’m harder to sell on another health score.
September 2, 2026 · 9 min read
Who Decided This Cancer Drug Costs $477,600?
Daraxonrasib is a real pancreatic cancer advance. Its price shows what happens when a company names the starting number and the payer cannot easily walk away.
June 26, 2026 · 4 min read
Welcome to The CareCore Stack
A doctor's note on the quest to fix healthcare.
May 1, 2026 · 6 min read
Peptides are not the product
Peptides are where longevity medicine's demand curve collides with pharmacy quality, regulatory process, and clinical governance.
The CareCore Stack
A sharper read on what health care is becoming.
Clear analysis of clinical evidence, market incentives, and the choices health care builders make next.