In my opinion Hill adds a little too much opinion into the mix, blurring the lines between her scientific base and her own interpretation of them. Nevertheless, I think the main idea of the book, that people who menstruate should adapt more to their cycle, is good and Hill proposes sensible ways to do this. I very much liked reading this and would definitely recommend it to anyone with a menstrual cycle since it can give some valuable insights in how your cycle influences your life and how you can improve your life by listening to your body.