In today’s episode, I interview Dr. Elina Berglund Scherwitzl, the co-founder and CEO of Natural Cycles. Natural Cycles° is a birth control app used by millions of women around the world. As a Class II medical device, the Natural Cycles app is cleared by the FDA in the United States and certified to be used as a contraceptive in Europe, Australia, and Singapore. Their internal research team has contributed to 14 peer-reviewed research papers. After contributing to physics research that led to a Nobel Prize in 2013, Elina applied her skills to create the unique algorithm in Natural Cycles that accurately pinpoints when a female is fertile based on her body temperature. Download Natural Cycles and use promo code 'femtechfocus' to get 20% off an annual membership and a free thermometer. Enjoy the episode!