I cannot specify the importance of the nervous system enough.  It regulates EVERY function within the body.  Every thought, action, emotion, sense, and system is controlled and maintained by this system.  Within this system comes the power of life, health and well being.  When function of the nervous system is at 100%, the byproduct is 100% function of every system within the body.  That means your cardiovascular, respiratory, digestive, immune, nervous and healing systems are functioning PROPERLY.  That is the way we were designed. 

Health is a normal state.  It is abnormal to be sick and diseased, but we have been conditioned to think that we are inferior beings born with many problems.  We have been conditioned to think that without medicine we will die.  In rare cases, yes.  But in all cases, that is absurd.  Do not believe this. 

Yes, there are those who have disabilities that hinder their quality of life, but even they have an innate intelligence that dictates how everything must function within them.  Everyone can function at 100% no matter what physical abilities one may lack.  Everyone can live a healthy balanced life, free of sickness and disease.  It is our God given right.  It is the way we were created.