Why Is The Question Of Palin Going Through Menopause Potentially Making A Risky President Off The Table?

My wife had a very very difficult year when she went through it. She was unable to work much of the year due to severe hot flashes and other non-trivial medical issues. She absolutely could not sleep well. She told me that she could not imagine going through it with the schedule of President or VP.
I don’t know why I am asking tihs question since are we not allowed to bring up the fact that men and women are different biologically in this campaign.