Menstrual synchrony
Strassmann argued menstrual synchrony defined as menstruation overlap should be quite common. For example, the expected difference by chance between two women with 28-day cycles—which is approximately the average length of menstrual cycles of women at the age —is 7 days. Considering that the mean duration of menses is 5 days and the range is 2 to 7 days, the probability of menstruation overlap by chance should be high.
28 (film)
28 is a 2014 Sri Lankan feature drama film directed and produced by Prasanna Jayakody. The film starred by Mahendra Perera and Semini Iddamalgoda in lead roles along with Rukmal Nirosh, Sarath Kothalawala. "28" revolves how three men transport the body of a woman, who was raped and murdered, in an old van. One of the men will find out that the woman is his estranged wife.The film name is given considering that the average menstrual cycle of a woman is around 28 Days. (Which is also equal for the moon to complete one full orbit around earth).