The evil smokers and their fiendish plot!

[HoreTore]

A junkie, for example, usually hangs out in an enviroment where everyone he knows does drugs, ie. the drug abuse is completely normal. Breaking out of that enviroment and finding a new enviroment where drugs aren't used, is denormalizing the drug use.

But it could be applied to everyone and everything. For example, all your friends could be gamers, and so playing games all day long would be normal in that enviroment. If you wanted to change your habit, denormalizing gaming could be one way of doing that, ie. Changing your enviroment to one where people don't play games all day long.