What causes addiction; Addictive drugs, right;
Maybe it's not so simple. Many patients receive drugs in large doses to alleviate their suffering from pain and yet do not become addicted. How do you explain something like that;

This video based on elements from Johann Hari's bestselling book “Chasing The Scream: The first and last day of the war on drugs”, He explains that what,What we knew about drug addiction is a reality.