"Female health tracking will empower women with a greater understanding of their menstrual cycles in conjunction with their physical and mental health, as they start to recognize what are normal trends over time versus what could be an issue to share with their doctor," said Dr. Katharine White, MD MPH, assistant professor of obstetrics and gynecology at Boston University School of Medicine and Fitbit Advisor. "The nuances of the menstrual cycle have not been as widely studied across populations as have other areas in healthcare. This exciting development by Fitbit could help potentially create one of the largest databases of menstrual health metrics in the world, providing healthcare and research professionals with an unprecedented ability to study menstrual cycles and women's health with real-world data.