Come on now! You know it's true.

UCLA STUDY

A study conducted by UCLA's Department of Psychiatry has revealed that
the kind of face a woman finds attractive on a man can differ depending on
where she is in her menstrual cycle.

For example: If she is ovulating, she is attracted to men with rugged
and masculine features. However, if she is menstruating, or menopausal,
she tends to be more attracted to a man with duct tape over his mouth and
a spear lodged in his chest while he is on fire.

No further studies are expected.