This episode of All About Fitness picks up in chapter 1 Smarter Workouts: The Science of Exercise Made Simple where you will learn how exercise influences change in your muscles. Chapter 1 covers how exercise changes the body; it's important understand that exercise is a physical stress imposed upon the body and that different types of stress cause different reactions in your muscles. There are two specific types of stress stimulus that cause muscle growth: metabolic and mechanical overload; in this section of Smarter Workouts you will learn what those are and how they change your muscles. Finally, your muscles contain different types of muscle fibers which themselves respond to various types of exercise. If you know how your body responds to exercise, then you will know the best types of exercise that are right for your body. 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 Gnarly Nutrition's products are designed to help you to achieve your fitness goals with their clean, effective and delicious supplements which are free from GMOs and NSF certified. Use code AAFitness to save 15% off of your order! https://gognarly.com 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