Women live longer than men. Yes, but why. I still havent seen a good explanation, or study on it, lately. Except from at my homeopatic school; they (doctors) claimed that men giving blood on a regular basis would extend their life span and live as long as the women.
Later I could not find the studies to confirm this.
Same as I can find a good data on anything that has to do with vaccination vs child deaths / life span in general.
I saw this 20 years ago, but it is not to be found anymore. It was published in the Lancet and other medical magazines.