Women know this, and it is not just Liberals. I know a lot of conservative woman who always seem depressed for some reason. Maybe it is to get attention, I don't know, but some I think just like to visit their Drs.
I know some who even take their DOGS to the dog shrink. No kidding. A discussion about their poor depressed poochie is a hoot, these idiot women are serious as a heart attack about that.
This is main reason I never want a WOMAN president.
Taking fish oil can help a lot with mood and brain health in general.
Also, hormones can affect women in some very interesting and dramatic ways:
http://www.34-menopause-symptoms.com/