[smnplk]

I see it as a mechanical failure. http://www.helpguide.org/harvard/how-addiction-hijacks-the-b...

These last words are optimistic: " It is not enough to “just say no”—as the 1980s slogan suggested. Instead, you can protect (and heal) yourself from addiction by saying “yes” to other things. Cultivate diverse interests that provide meaning to your life. Understand that your problems usually are transient, and perhaps most importantly, acknowledge that life is not always supposed to be pleasurable."