Addictive Behaviours

[Fang]

"Addiction" is such a loaded word. I enjoy eating a smoothie every morning and if I ever forget it can sometimes effect how I feel the rest of the day. The smoothie is undoubtably very healthy for me and I'm addicted to it.

More than a loaded word, it is a misused word. This is understandable because the definition is somewhat vague (which is also understandable given that it is a fairly recently defined word) and people often make a leap to say that they are "addicted" to things like smoothies or their favourite tv show. not a personal jab but it's fairly obvious you have never actually been addicted to anything, this is a good thing.
There is a difference between addiction and habitual behaviour. The more an action becomes habitual and mechanical, the less it is subject to evaluation. It's possible for habitual behaviours to reach a point where they are carried out on the same level as survivalist behaviors, so the action is seen as a bodily need need imperative to survival rather than a want, this is getting closer to addiction.

I was watching a documentary about a community of people addicted to morphine and they had a field full of plants that they made it from. he problems didn't come from the morphine itself but rather, the lack of it is what caused unruly behavior.

Now this, this is addiction. The physiological effects of opiate addiction leave the user in a state of sickness in withdrawal, people that are addicted to it are long beyond "getting high" and keep using to avoid the sickness the withdrawal will bring rather than pursuing anything resembling "pleasure".
That said, there are properties of mind within certain individuals that give them a certain predisposition towards addictive behaviour or pursuing chemicals that body becomes dependent on.