i think wikipedia does a good job of explaining it: http://en.wikipedia.org/wiki/Addiction#Varied_forms_of_addiction http://en.wikipedia.org/wiki/Addiction#Var

i think wikipedia does a good job of explaining it: http://en.wikipedia.org/wiki/Addiction#Varied_forms_of_addiction http://en.wikipedia.org/wiki/Addiction#Varied_forms_of_addic...