Fruit Flies on Crack

[xoxoxoBruce]

''It's been established the some individuals may be predisposed to addiction,'' Blau added. ''These findings suggest that a specific genetic make-up in humans could further explain why some individuals are more susceptible than others.''

This article talks about research about using fruit flies with mutated genes to test the reaction to crack cocaine specifically but with implications to all addictions.
I still think a lot of addiction is social/psychological, at least at it's inception, but further cracking of the gene code may show why some people are hopelessly trapped by addiction.
Of course not all addictions are a bad thing.....like being addicted to the Cellar.