From our moods to our metabolism, hormones are running the show behind nearly every bodily function. They tell our hearts how quickly to beat, our guts how to process the food we eat, our bones to release calcium, and our muscles to grow new fibers. Yet, most of us don’t fully understand how our bodies and their systems work—and more importantly, what to do when they don’t.

Enter renowned endocrinologist Dr. Gillian Goddard, author of the groundbreaking new book THE HORMONE LOOP: An Empowering Guide to Restoring Hormonal Harmony, from Puberty to Menopause (Harper Influence, ISBN: 9780063455047; $30.00; Hardcover; on sale: 6/2/2026). Dr. Goddard knows firsthand how urgently women need clear, accessible information about their hormonal health. Drawing from years of clinical experience, she presents a definitive and engaging guide to hormonal health at every stage of a woman’s life—from puberty to reproductive years to perimenopause to menopause to post menopause.

As Dr. Goddard clearly explains, at each of these stages, there are four distinct hormone loops that keep our bodies in balance: the reproductive loop, the thyroid loop, the growth hormone loop, and the adrenal loop. While these loops often operate quietly in the background, each plays a powerful role in our lifelong health.

There is no one-size-fits-all solution to the challenges and changes our bodies experience throughout our lives, but hormones often hold the key. Weaving stories from her practice with the latest medical research and featuring helpful charts and illustrations, THE HORMONE LOOP breaks down the problems that commonly arise throughout our lives and offers a clear rubric for how to have better conversations with our doctors.

THE HORMONE LOOP is an essential and long overdue book that equips women with the knowledge and confidence to become their own powerful, self-advocates, and also empower mothers to help their daughters navigate the often- confusing stage of puberty.