I just want to add to the original question in this thread. The thing that really turned things around for me was a documentary where subjects where required to consume p daily for 30 days and it clearly showed that the consumption had a negative impact on their lives in terms of well being. I believe other studies have come to the same results.
The name of the documentary was:
Adult Entertainment: Disrobing an American Idol
http://www.imdb.com/title/tt1014670/