New 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;
If she is menstruating or menopausal, she tends to be more attracted to a man with scissors lodged in his temple and duct tape over his mouth while he is on fire.

No further studies are expected.