"You may think that the first test regarding how well period products absorb blood was maybe 30 to 40 years ago, and you know, that seems really reasonable. But it wasn’t—it was only a couple of weeks ago."
Jesus H. Christ
https://www.themarysue.com/its-2023-and-theyve-only-just-tested-period-products-with-actual-blood/
@Shelter Yep. In the past decade, there have been over 10,000 peer-reviewed studies on erectile dysfunction but only 400 on menstrual bleeding.
Given their measurement methods, many women who suffered from heavy bleeding but didn't meet the absorption criteria set by doctors using this faulty data have been bleeding WAY more than previously believed.