FREAK-est Links

Enter your name

I wonder if the "gaydar" researchers did enough "female biology" research to know that just counting the number of days since the beginning of the last menstrual period is a relatively poor indicator of whether a woman is fertile.

Technically, a woman is fertile about two weeks before her next menstrual period, not two weeks after the previous one. If she's one of the one-third of women whose period doesn't fall into the "officially normal" system of a predictable 21-to-35 day cycle length, then the researchers will have her misclassified.

There are three non-invasive solutions: They can ask for typical cycle lengths (and drop anyone from the study who reported irregularity), they could follow up later to establish this particular cycle length, or they could teach the subjects basic fertility awareness skills.