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Menstruation Machine

So what does Menstruation mean, biologically, culturally and historically, to humans? Who might choose to have it, and how might they have it? The Menstruation Machine — fitted with a blood dispensing mechanism and electrodes simulating the lower abdomen — simulates the pain and bleeding of a 5 day menstruation process. The machine was developed with research support from Professor Jan Brosens at the Department of Medicine, Imperial College London.