Winner of the 2019 National Indie Excellence Award for Women's Health! 28 Days is the book that launched the movement to live in sync with your menstrual cycle. First published in 2005, this all-new updated and fully expanded edition shows women with healthy, natural (no hormone birth control) menstrual cycles how their hormones will be impacting their mood, energy, health, love life, spending habits and much more every day of their cycle.Written by Gabrielle Lichterman--Hormonology® founder, Hormone Horoscope App creator and pioneering women's health journalist--28 Days is based on thousands of scientific studies. Yet, it's easy to use: Simply turn to the day you're on in your cycle and read your Hormone Horoscope for that day!With this hormonal heads-up, you'll be able to take full advantage of hormonal benefits (such as a spike in mood and energy) and prepare to overcome hormonal challenges (such as fatigue and sleep issues), which helps make every day of your cycle better.28 Days is the definitive guide to understanding how the hormones in your cycle impact you in virtually every way. It will immediately change the way you plan your day, week and month ahead. What if you could predict when your... > Mood would be high or low? > Energy would be soaring or dropping? > Desire to socialize would be peaking or bottoming out? > Your memory and other brain skills would be their sharpest? > Health symptoms would be increasing or decreasing? Would you schedule your life to take advantage of your very best days--and avoid piling more onto less stellar days? Well, you can! All it takes is pinpointing where you are in your menstrual cycle! A mountain of studies prove that the ups and downs of hormones in your cycle impact your moods, health and behavior--and these effects repeat the same way cycle after cycle. This means you can predict what every day will be like with scientific accuracy! 28 Days delivers the world's only daily Hormone Horoscope ®, which shows you what you can expect from virtually every facet of your day--including your mood, energy, brain, romance, shopping habits, work and school life, food, sleep, exercise and health. Armed with this information, you can make the most of hormonal benefits, dodge hormonal pitfalls and make every day of your cycle better! Gabrielle Lichterman pioneered the cycle-syncing and hormone awareness movement in 2005 with the first edition of her groundbreaking book, 28 Days: What Your Cycle Reveals About Your Moods, Health and Potential . She's the founder of Hormonology®--an educational outreach mission that teaches women and girls how hormones impact their moods, health and behavior every day of their cycle. She's also the creator of the popular suite of Hormone Horoscope apps for women and teen girls and the Female Forecaster app for male partners of cycling women. Gabrielle is recognized as a leading expert in how cycling hormones impact the brain and body and is a widely-respected women's health journalist who has been at the forefront of covering women's issues for more than 20 years. Her articles have appeared in dozens of major publications around the globe, including CosmoGirl , First for Women , Glamour , Marie Claire , New York Daily News , Self , Woman's World and Working Mother .