X Chromosome Linked to Autoimmune Diseases

FILE- People walk on the Stanford University campus beneath Hoover Tower in Stanford, Calif., March 14, 2019. FILE - This image provided by National Institutes of Health (NIH) shows the X and Y chromosomes.

Women are far more likely than men to get autoimmune diseases, when an out-of-whack immune system attacks their own bodies — and new research may finally explain why.