Stacy Sims, MSC, PhD, is a Stanford-based exercise physiologist and nutrition scientist and the cofounder and chief research officer of OSMO Nutrition, a sports nutrition company. A regular featured speaker at professional and academic conferences, including those hosted by USOC and USA cycling, she resides in Palo Alto, CA.
Selene Yeager is a professional health and fitness writer, certified personal trainer, USA cycling certified coach, professional mountain bike racer, and all-American Ironman triathlete. She has authored, coauthored, or contributed to dozens of books and national publications. A 2007 national magazine award nominee for excellence in service journalism, she lives in Emmaus, PA.