Man has always and always will be the dominant figure in the human race although the female in recent centuries tried to gain equality. But you ever thought about this:

MENopause.
MENstrual.
woMAN.
woMEN.

When a woman thinks she's on top of the family or on top of the world and can't open a jar of food to cook dinner with she runs to the MAN to open it.. Why is it she asks MAN and not any other woman in the house? Because she knows MAN has the POWER and STRENGTH.