In this episode, Lindsey sits down with Dr. Sarah Hill, award-winning researcher + author of This Is Your Brain on Birth Control + her new book The Period Brain. Sarah shares what’s really happening in your brain and body throughout the cycle—and why so much advice leaves women guessing.

Ahead, Sarah reveals why PMS hits so hard, how progesterone impacts mood + energy, and the surprising ways hormones shape relationships, creativity, and decision-making. Learn what your body needs in each phase—and how ignoring those needs affects fertility, mental health + more.

You’ll also hear science most doctors skip, why women often feel “off” in modern life, and the simple shifts that make work, love, and wellness easier. This conversation is practical, myth-busting, and designed to help you start working with your cycle right away.

We also talk about:

How modern culture disconnects us from body intuition
The reason women’s brains are wired for transformation
How to sync your life with your cycle for radiant health
Why sensitivity is your greatest superpower, not a liability
How to protect your energy in relationships + at work
The spiritual side of sexuality: marrying pleasure with intuition
Quick rituals for deep self-love + daily goddess upgrades
Building soulful confidence in a hyper-competitive world
Busting myths about female friendship + authentic sisterhood

Resources:

LinkedIn: https://www.linkedin.com/in/sarahehillphd/
Twitter/X: https://x.com/sarahehillphd?lang=en
Instagram: https://www.instagram.com/sarahehillphd/?hl=en
Website: https://www.sarahehill.com/
Book: THE PERIOD BRAIN: The New Science of Why We PMS and How to Fix It: A Manifesto for Women (Sept. 30, HarperCollins)

Order our book, Almost 30: A Definitive Guide To A Life You Love For The Next Decade and Beyond, here: https://bit.ly/Almost30Book.

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Almost 30 is edited by Garett Symes and Isabella Vaccaro.

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Jenna Lyons & Julia Fox