Your Organs Don’t Age the Same If You’re a Woman or a Man

Most “biological age” scores treat men and women as the same machine. A new Nature Medicine atlas builds dozens of organ-by-organ clocks with sex-specific baselines — and the aging stories start to split. We walk through what the clocks actually measure, why pooled models can hide a real effect, and what this means if you are watching heart, brain, or immune aging rather than a single magic num This episode includes AI-generated content.