Men vs. Women: Scientists Uncover Dramatic Differences in How the Immune System Ages

A large single-cell study found that immune aging differs sharply between women and men.

Women showed more inflammatory changes, while men showed more pre-leukemic shifts in blood cells.

Researchers analyzed blood from nearly 1,000 adults using single-cell RNA sequencing on MareNostrum 5.

The findings may help explain sex-based differences in infection, cancer, and autoimmune disease risk.