Quote Originally Posted by Lyle View Post
....OK fine, you want to be right, then go right ahead.

I just float out a theory and along comes Negative Nancy to try and shame me into not thinking outside the box.

Mice Lacking Gene Show Reduced Alcohol Preference And Sensitivity

I would venture to guess that lacking the D2 receptor is probably an adaptation to an environmental stimulus, but hey what do I know. Have fun being right.
I never disputed the fact that there is evidence that, for some, there is a genetic basis for alcoholism and drug addiction. There is clearly evidence to support that position and I don't disagree with it. However, to say that that is the only reason for substance abuse is wrong. Alcoholism is a very complex problem, if it was easy to explain scientifically, psychologically etc. it wouldn't be the issue that it is. I do feel that there are a variety of factors, including genetics, that cause people to abuse and become addicted to substances and there is a wealth of evidence that supports this.