Women live longer, and they tend to be the last to die in, say, a famine or in an epidemic. The exact reasons aren’t known, but Dr. Hahn offers some theories as to why, in an evolutionary sense, women might have a stronger immune system. One possibility is that women confer the first immunity to their babies.
This "stronger immune system" is what, theoretically, may explain why autoimmune disorders affect women disproportionately to men. Females have a more active/overreactive immune response. Fascinating!
