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Gabrielle Lichterman is the founder of Hormonology, author of 28 Days: What Your Cycle Reveals about Your Love Life, Moods and Potential and creator of the popular Hormone Horoscope menstrual cycle tracker apps. In 2005, Gabrielle pioneered the growing movement among women to live in sync with their menstrual cycles and learn about the many ways their hormones impact their moods, health and behavior with the publication of her book, 28 Days. She's also a longtime women's health journalist whose articles have been published in major publications around the globe. Gabrielle's new updated and expanded version of 28 Days is due to be published December 2018. You can help get this book published by participating in her fundraiser at MyHormonology.com/28-days-fundraiser.