Dr. 'Mark Sircus': Doctors Do Not Practice Medicine

They do not have the simple capacity or intelligence to know what is wrong and the right thing to do about it. Gas station attendants know better, they know when gas is low to put more gas in the tank but doctors are blind to deficiencies in the body of key elements and thus they do nothing about it.

Source: https://www.youtube.com/watch?v=Ux32kC-3lmA