Insights

Notes on the future of medicine.

Essays and commentary on prevention, longevity, AI in medicine, and the forces remaking American healthcare — written from four decades at the bench, the bedside, and the helm of an academic medical center.

Writing

Latest Essays

Epigenetic clock and biological aging illustration

Longevity · June 3, 2026

The Prevention Decade

Why the next era of medicine is defined by healthspan, not just lifespan — and what GLP-1s, epigenetic clocks, and mitochondrial biology actually tell us about aging well.

Read the essay →

More essays are on the way. For evergreen explainers on specific subjects, see the topic pages on AI in medicine, longevity, and GLP-1s & cardiometabolic health.