Skip to Main Content (Press Enter)
Cycles by Amy J. Hammer
Add Cycles to bookshelf
Add to Bookshelf


Best Seller
Cycles by Amy J. Hammer
Hardcover $27.95
Feb 07, 2023 | ISBN 9781611809060

Also available from:

See All Formats (1) +
  • Feb 07, 2023 | ISBN 9781611809060

    Also available from:

  • Feb 07, 2023 | ISBN 9780834844834

    Also available from:

Product Details


“Amy Hammer separates menstrual facts from fiction in a way that is both friendly and approachable. Packed with crucial information you may have missed in health class, Cycles gives you everything you need to reclaim and embrace all the seasons of your cycle.”—Amanda Laird, registered holistic nutritionist, author of Heavy Flow: Breaking the Curse of Menstruation, and host of the Heavy Flow Podcast
“For menstruators, learning about our biology and the intricacies of our menstrual cycle is a crucial part of unlearning the stigma we’ve lived through and the misinformation we’ve maybe been exposed to. Periods are powerful, and with a deeper understanding of our bodily changes, we can make informed decisions to maximize our energies and capabilities according to our menstrual cycles. I love that this book is one step to help do that!”—Nadya Okamoto, author of Period Power: A Manifesto for the Menstrual Movement
“In Cycles, Amy J. Hammer has written a remarkably thorough, comprehensive, and accessible guide to the reproductive and sexual health of humans who menstruate. She situates menstrual cycles in context of cycles of life and seasons of nature in a way that enhances our understanding of menstruation. The text presents a finely tuned balance of the complexity and variety of individual cycles with commonalities across cycles and menstruators, with many helpful illustrations. Hammer explains medical terms for anatomy and for physiological processes clearly and concisely, without getting weighed down by jargon. Cycles can be read straight through or in sections of interest, then kept on the shelf as a reference for life.”—Elizabeth A. Kissling, PhD, professor emerita of Gender, Women’s, and Sexuality Studies, Eastern Washington University
“Amy Hammer’s Cycles is a modern update to understanding our menstrual cycles. The blend of history with modern-day science and thoughtful illustrations makes Cycles as interesting as a good novel.”—Halley Strongwater, clinical herbalist and founder of Loam Earth
Cycles is the book you always wish you had about your cycle that breaks down the science and history behind menstruation and beyond in an accessible, easy-to-digest way, while offering no-nonsense tips to improve not only your menstrual health but overall health as well. After reading the book, it struck me just how little I knew about something I experience every month.”—Auri Jackson, producer at Buzzfeed and writer, director, and producer of The Spot

“Amy J. Hammer has written a truly comprehensive and compassionate guide to reclaiming your menstrual cycle. Cycles provides women with a ton of insight into how their bodies work and most importantly how to align their daily lives with their menstrual cycles. This is revolutionary information that will help women cultivate optimal health throughout their lives. Definitely one to have on your shelf!”—Nicole Jardim, certified women’s health coach and author of Fix Your Period

Looking for More Great Reads?
21 Books You’ve Been Meaning to Read
Get the latest updates about Amy J. Hammer
And go from well-read to best read with book recs, deals and more in your inbox every week.
And go from well-read to best read with book recs, deals and more in your inbox every week.
By clicking SIGN UP, I acknowledge that I have read and agree to Penguin Random House’s Privacy Policy and Terms of Use and understand that Penguin Random House collects certain categories of personal information for the purposes listed in that policy, discloses, sells, or shares certain personal information and retains personal information in accordance with the policy. You can opt-out of the sale or sharing of personal information anytime.
Something awesome is on its way.
Back to Top