AllanGregg
How does addiction change the brain?  
According to Dr. Gabor Mate, it's a difficult struggle for hard core 
drug addicts to kick their habit because their brains are impaired.  In a
 new book, he looks at the common roots of addictive behaviours and what
 can be done about them.  It's called "In the Realm of Hungry Ghosts:  
Close Encounters with Addiction".
 
