Researchers discovered that women have always had a higher life expectancy than men, ever since such data could be collected.
Except among child-bearing age group.
Even today bearing a child is the sixth most common cause of death among women age 20 to 34 in the United States.
(A personal note: my husband didn’t agree with me that this is a good enough reason not to have children. I had more good reasons, but he didn’t agree with any of them. I guess this too did not contribute to our domestic bliss.)