Annette Zapp is a 14-year veteran of the fire service, currently serving as a full-time lieutenant for the Lisle-Woodridge, IL, Fire Protection District near Chicago. She has a master’s degree in biochemistry and molecular biology, and is credentialed through the National Strength and Conditioning Association (NSCA) as a certified strength and conditioning specialist (CSCS) and a tactical strength and conditioning facilitator (TSAC-F). She is also a PN-1 coach and a certified sports nutritionist from the International Society of Sports Nutrition (CISSN). Zapp is the owner of A to Z Fitness and Nutrition and the co-founder of Transformation Engineers, an online coaching platform.