Or high productivity in any field, really. And I know it also hurts people who have IBS, simply not feeling well, etc… I am focusing on menstruation here. You will be seen as a more successful worker if your productivity stays up because you don’t have to deal with the daily requirements of a period when it comes. It’s similar to making Amazon workers pee in bottles, except the risks are slightly higher…like having to keep in a tampon too long and at worst risk toxic shock syndrome/possible death/amputations/etc., and/or bleed through your clothes at best or have your productivity take a hit to deal with it