@ Danica: once again nature proves the validity of Occult Symbols.
@ the rest of you: ?
To bring this back the original topic: I've found that a woman's menstrual cycle, when mapped by Astrological means, varies in strength and disposition according the sign of the Moon. My researches, of course, have been conducted on Sidereal lines.
Another fun fact: I have now experienced, at least twice, the joy of explaining the tenets of Sidereal Astrology (or reality, as some call it) to individuals who sported tattoos of Tropical extraction. Upon further reflection, this has happened not less than three times. I find the imminent consternation of the subject amusing as hell.