This episode continues with chapter 1 from Smarter Workouts that addresses how exercise changes your body. Your muscles use two different types of energy to produce movement: mechanical and metabolic; this episode covers the basics of energy metabolism and how your muscles convert the food you eat into the energy used to move your body. In addition, you'll be surprised at which part of your body is REALLY responsible for the changes that you experience as the result of your workout program. Listen and learn all about how exercise changes your body on this episode of All About Fitness. SPONSORS BUTCHERBOX: Sign up today at butcherbox.com/aafitness and use code AAFITNESS to get one 10-14 lb Turkey FREE in your first box. GNARLY NUTRITION: Visit goGnarly.com and enter promo code AAFITNESS to get 15% off your entire purchase today Learn how to design your own workouts; order a copy of Smarter Workouts: the Science of Exercise Made Simple https://amzn.to/3dBVfg4 Learn how exercise can slow the aging process and allow you to add YEARS to your life with Ageless Intensity: High Intensity Workouts to Slow the Aging Process https://amzn.to/3eYieSC Learn more about your ad choices. Visit megaphone.fm/adchoices