What exactly is a "religion addict"? Is that anyone more religious than you? I was an atheist most of my life, and I don't think I ever felt such contempt for the religious as it appears you feel.
I'm not sure what would constitute reliable/consistent physiological and psychological indicators of "addiction to religion"
however, there are those who are as much "addicts to churchgoing" as those considered "addicts to strip-clubs": same basic behavioral paradigm.
I have no contempt for religion, but when people start ignoring common sense and practicality because of something they interpret as some divine truth they read or are told, then they are addicted, yes. People who believe that I am destined to hell because I miss church or eat meat on fridays are religion addicts. People who refuse to accept the reality that man has been on this planet far far longer than the bible has been in existence and claim that only they know the truth are addicts. What about all those people who lived before Jesus came to this earth? Are they going to heaven?
Religion is supposed to be a framework for morality, not a substitution for common sense and reality.