What do you really know about the menstrual cycle? India Rakusen explores the whole bloody story, discovering facts that could change your life. Periods are just the beginning.

In this intimate, bold and taboo-busting series, we follow the menstrual cycle from bleeding to, well, bleeding again - with all the amazing science, drama, history, personal stories and politics in-between. We’ll learn how understanding your hormones and your cycle can change your life, one day at a time.

28ish Days Later is a Listen production for BBC Radio 4 and BBC Sounds. It is presented by India Rakusen, the producer is Ellie Sans, and the executive producer is Suzy Grant.

Assistant producer Jorja McAndrew

Original music by Rebekah Reid. 

Mixing and sound design by Olga Reed and Charlie Brandon-King.