Gabrielle Lichterman is the founder of Hormonology, creator of the Hormone Horoscope app and Female Forecaster app, and author of 28 Days: What Your Cycle Reveals About Your Moods, Health & Potential. In 2005, Gabrielle pioneered the movement to live in sync with your cycle--which is now followed by countless women worldwide.

Visit her wonderfully informative website MyHormonology.com.