 
        
        
      
    
     
      
      Is The Brain A Muscle?
Is the brain a muscle? How is the brain like a muscle, and how is it different from a muscle, and what lessons can we learn from that? What does this mean for mental and physical training?
 
        
        
      
    
     
      
      Is the brain a muscle? How is the brain like a muscle, and how is it different from a muscle, and what lessons can we learn from that? What does this mean for mental and physical training?