Lesson 1 The Science Behind the Exercises
            
          
        
      
        
          
          
            
          
        
      
        
          
          
            
          
        
      
        
          
          
            
          
        
      
    
    IN THIS LESSON
Learn the how and why behind the corrective exercises to build muscle memory to find good posture and body mechanics.
- How your breathing affects which muscles you use. 
- What is the core? 
- Where you put your body weight against gravity affects whether your core is on or off. 

