Sims was born to an American military family in 1973. She spent much of her childhood in the Netherlands and went to high school in San Francisco in the United States. In high school, she competed in cross country running and field hockey. Sims attended Purdue University for her undergraduate degree and graduated in 1995. She then completed a master's degree in exercise physiology and metabolism at Springfield College. She received her Ph.D. from the University of Otago in New Zealand in 2006.[1][2] She also held post doctoral position with Marcia Stefanick in the Stanford Prevention Research Center.
From 2007 to 2012, Sims studied sex differences in physical activity, performance and health at Stanford University.[5] She educates on women’s and girls’ training and performance, often using the phrase, "Women are not small men." Her 2016 book, Roar focuses on these differences including the effects of menstruation and hormonal birth control, female-centered nutrition, and aging and menopause.[5][3] In 2019, Sims delivered a talk titled "Women are not small men" at TEDxTauranga.[6]
Roar: How to Match Your Food and Fitness to Your Unique Female Physiology for Optimum Performance, Great Health, and a Strong, Lean Body for Life (2016, co-authored with Selene Yeager)
Next Level: Your Guide to Kicking Ass, Feeling Great, and Crushing Goals Through Menopause and Beyond (2022, co-authored with Selene Yeager)
^Sims, Stacey Teresa (2006). Plasma volume and the physiological response to sodium loading in men and women : a thesis submitted for the degree of Doctor of Philosophy, School of Physical Education, University of Otago, Dunedin, New Zealand.
