Well, I have heard that if "momma ain't happy, nobody's happy." It's is, perhaps, becoming old-fashioned to say so, but for the most part the woman is the one who keeps the home running smoothly. Especially if there are children involved. So if the "woman of the house" is unhappy or unusually stressed, she will not be doing as good a job at this basic task. So, in a sense, the statement is true.