Lisa Falco, MSc, PhD, a native Swede living in Switzerland, has been working in the interface between medicine and technology for almost 20 years, on how data can be used to better understand the human body. Doing so she has worked within varying fields of women’s health, such as bone research, diabetes and fertility. She was previously Director of Data Science at Ava, a Swiss FemTech startup, where she led a team developing algorithms and artificial intelligence to help women get pregnant faster by using their physiological data based on their menstrual cycle. The work she did there, and the women I encountered in the process, inspired her to write this book to fight against the misinformation and lack of knowledge about the female body.