Updated and Expanded Edition
Winner of the 2019 National Indie Excellence Award! 28 Days is the book that introduced the world to cycle-syncing. Written by pioneering women’s health journalist Gabrielle Lichterman, this updated and expanded edition gives you more daily categories and cycle-syncing tips than the first edition published in 2005.
Hormonology® Menstrual Cycle
In this paperback period-tracker journal, you get 12 sets of comprehensive menstrual cycle tracker charts that help you monitor flow, basal temperature and cervical mucus as well as emotional, physical and health changes throughout your cycle. Plus, you get 12 6-page sets of dot graphs that you can use to shape your data into lists, graphs or logs.
Hormonology® Day-by-Day Menstrual Cycle Guided Journal
In this guided paperback journal, you get 9 daily self-discovery questions, which enable you to create a custom manual for your menstrual cycle that helps you make every cycle day better. Plus, you get study-backed tips for overcoming cycle-related challenges, recommendations for syncing your life with your cycle and bonus self-discovery questions.
Hormonology® 2-in-1 Cycle Tracker + Day-By-Day Guided Journal
This 2-in-1 journal combines the Hormonology® Menstrual Cycle Tracker Journal and Hormonology® Day-By-Day Guided Menstrual Cycle Journal into a single volume. In it, you get 12 sets of comprehensive menstrual cycle tracker charts, 12 6-page sets of dot graphs, 9 daily self-discovery questions, tips and recommendations.
IMPORTANT: All Hormonology apps were permanently retired on January 15, 2023. If you have downloaded them, they will not be deleted from your device. However, there is no ongoing support for the apps. To learn why these apps were retired, please read my Full Statement.
All Hormonology offerings will now be delivered in books. Right now, you can get my daily Hormone Horoscope in my book 28 DAYS: WHAT YOUR CYCLE REVEALS ABOUT YOUR MOODS, HEALTH & POTENTIAL. And you can track your cycle using my HORMONOLOGY MENSTRUAL CYCLE TRACKER JOURNAL, which are available at Amazon. More Hormonology books are coming soon. To get alerted to new books, sign up to my free mailing list.