Immune System Aging Differs Dramatically Between Men and Women
Men and women do not age the same way. Their immune systems follow distinct paths.Women have stronger immune defenses. However, they face a higher risk of autoimmune diseases. About 80% of these conditions occur in women.Men are more prone to infections and certain cancers. These differences change over time.
New Research Findings
Scientists at the Barcelona Supercomputing Center analyzed nearly 1,000 blood samples. They used single-cell RNA sequencing.This method examined over one million cells. The team measured about 20,000 genes per cell.As a result, they uncovered dramatic differences in immune aging.
Women vs. Men
Women experience more pronounced immune changes with age. They develop more inflammatory immune cells.This may explain why autoimmune diseases worsen later in life. In contrast, men show fewer overall changes.Nevertheless, older men have more blood cells with pre‑leukemic alterations. This helps explain why some blood cancers are more common in men.
The Power of Supercomputing
The MareNostrum 5 supercomputer processed the massive dataset. Earlier studies often left out women.This project included balanced representation. Therefore, the findings are more reliable.
“Treating aging as uniform overlooks important differences,” say the researchers. Recognizing sex‑specific immune aging will improve healthcare.For example, doctors could tailor prevention and treatment strategies. This supports healthier aging for everyone.
