Addiction
Everything you find on the site in the section about the Teenage Brain and its subsections are relevant to addictions of any kind. Especially, of course, The Story of the Reward-Factory.
It´s very helpful to explore the following sections if you deal with addiction as a problem: A Way to Success and Help Someone Else.
It´s also highly recommended to use the basic knowledge provided in the sections on The Attention – Spotlight of the Brain and The Thinking Brain and the Alarm Centre.