A Life of Greatness3 Marras 2025

Dr. Stacy Sims (Part 1): Understanding Hormones, Supplements & Exercise

She is an internationally renowned exercise physiologist and nutrition scientist, recognised worldwide for her groundbreaking work on female physiology, hormones and performance. Yet Dr Stacy Sims’ story stretches far beyond the lab.

In this first of a three-part series, Sarah Grynberg and Dr. Sims dive deep into the science of hormones, supplements and exercise - unpacking what’s really happening in the female body, how our needs shift through each hormonal phase, and the practical ways we can work with our biology instead of against it. With clarity and candour, Stacy explains why blanket fitness advice often fails women, and what we can do instead to feel stronger, sharper and more in tune with our bodies.

You’ll learn:

The truth about hormonal fluctuations and how they affect training, recovery and energy levels
Which supplements matter most at each life stage, from iron and creatine to vitamin D and magnesium
How lifestyle, movement and brain stimulation can protect cognition, mood and longevity as we age

This episode is an empowering reminder that understanding our biology is the first step to reclaiming our health - and that small, science-based choices can completely transform how we feel day to day.

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