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 a
spear lodged in his chest and tape over his mouth while he is on fire.
No further studies are expected.
Since I have experience in this, though not part of the study, I find it to be true!
Ganked from Thomas.