The menstrual cycle can be divided into 3 parts: (a) That Man Is A Ride, (b) That Man Would Be A Great Husband, And A Loving Father To Our Many Children, and (c) All Men Must Be Sacrificed And Fed To The Eight-Legged Mother Spinster, Szlúrâk, While We Dance Naked To The Sound Of Their Screams
@Ciaraioch That's a more poetic description than the "seasons" analogy used in this podcast https://www.bbc.co.uk/programmes/p0bvg9nm
BBC Radio 4 - 28ish Days Later

What do you really know about the menstrual cycle? Periods are just the beginning.

BBC