Just the other day, I was speaking to a reader about personality types and how each type is motivated differently, when he suddenly burst out, “But I still don’t understand why a perfectly intelligent person would become addicted. I know so many wonderful people, really smart, but they end up addicted and slowly killing themselves. I just don’t get why anyone would do that to themselves.” I told him that personality type and addiction have no correlation, and that I really didn’t understand it either. But as Karma would have it, that evening as I was watching Book TV–yes I am a nerd–a writer came on who seemed to have an answer to my reader’s question. Addiction just might have something to do with the quality of our cages.
I found a number of links that examine this idea. They explain it better than I could.
That being said, Welcome to Rat Park: An Article by Bruce K. Alexander.
If you want to read more, simply google “Rat Park and addiction,” and then follow the links.
Hope this helps in understanding.