control: There is a reason why they classify us as vertebrates – our spines are the center of our body. On top of that spine is our head. The spine is the longest lever in the . The head is at the end of that lever. If you control the head you can exert tremendous leverage that can be used to control the . Look for to control the head – many are pretty obvious but some are more subtle. Understand that you can exert pressure on the head in linear (eg snap down) and circular (eg crossface) directions – be sure to use both. Understanding Jiu jitsu is to a large degree, understanding the human body and its essential nature. Our spines largely define our physical lives – make sure your Jiu jitsu reflects this fundamental fact