What is the opposite of addiction ? How many different things are people addicted to nowadays ? Why should people try to find natural nice ways to get rid of serious addictions ? Why did Bruce Alexander, a professor of psychology build a Rat Park ? What are the other words used in english to refer to addicted people ?
http://www.macmillandictionary.com/thesaurus-category/british/someone-who-sells-or-uses-illegal-drugs
http://www.brucekalexander.com/articles-speeches/rat-park/148-addiction-the-view-from-rat-park
Watch this video and then you are going to answer these questions easily, I guess ! The links above can also help you to answer some of the questions at the beginning of this post,ok ?