Hidden Guests: Migrating Cells and How the New Science of Microchimerism Is Redefining Human Identity

What if some of your cells were not your own? What if they once belonged to someone else?

Part mind-bending medical mystery-part cutting-edge science-Hidden Guests uncovers the astonishing phenomenon of microchimerism: the presence of foreign cells inside our own bodies. The incredible story of how those cells got there-and what they do once they arrive-might change everything we know about the immune system, lineage, and identity.

We are all told the same story as children: that we grew from...