Selene Yeager is a top-selling author and professional health and fitness writer who lives what she writes as a certified personal trainer, expert-class mountain bike racer, and triathlete. She has authored, co-authored, and contributed to more than two dozen books. She is a contributing editor at Prevention and Scuba Diving magazines and dishes out training advice monthly as Bicycling magazine's "FitChick." She lives in Emmaus, Pennsylvania. Prevention, America's #1 Choice for Healthy Living, is the single most popular health magazine in the country and is the third most trusted source for health advice in the country, trailing only the doctor and pharmacist in authority.