Katie interviews Chiara Bercu, an expert in menstrual health who has worked on adolescent education programs in developing countries across the globe to help prepare students for puberty and menarche. Chiara describes the obstacles to and impact of menstrual hygiene on girls around the world, including the drastic effects that a lack of menstrual hygiene can have on girls' school performance, self confidence, and overall wellbeing. She discusses effective interventions for improving menstrual health and hygiene of girls in developing nations, as well as how taboos surrounding women's periods differ in various countries around the world. Lastly, Katie and Chiara discuss ways in which we can all combat stigma surrounding periods, regardless of where we live.