University of California San Francisco

Winter 2026

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Cover of UCSF Magazine: top reads “UCSF Magazine, Winter 2026”. Text below reads: "Rethinking Estrogen." Collage-style photo illustration of a portrait of a short-haired person facing right, overlaid with a yellow band across the eyes showing an anatomical brain drawing and floating pills; behind the head are vintage medical illustrations and abstract colored circles on a pale background.

Estrogen does far more than regulate reproduction, shaping how the gut, immune system, and nervous system function across a lifetime. UCSF scientists are uncovering how this hormone influences health well beyond menopause — and why that matters more than ever. PLUS: Lab-grown mini organs offer powerful new ways to study human biology, evidence that therapy for childhood trauma may slow biological aging, and insights into why heart disease can strike South Asians who appear healthy by traditional standards.

About this Issue:

Vol. 14, No. 2
Editorial Team

Features

Insights & Voices