Except that there is a psychological component involved. The craving for another fix, I am told, can be incredibly intense, and the harshness of a reality you t

Except that there is a psychological component involved. The craving for another fix, I am told, can be incredibly intense, and the harshness of a reality you tried to escape from in the first place, does not really help. From what I have read (all this is strictly second- to fourth-hand knowledge!), it is very hard to watch somebody you love (or just care about) go through this.