So from a negative standpoint, it's not uncommon for an addict to move up to more extreme substances over time in order to keep getting their fix. For example, someone who starts off with the occasional drink, may eventually become an alcoholic, and then in turn, may turn to harder drugs down the line. On the flip side, those who try to quit one addiction may turn to a "lesser evil" addiction. For example, I had a friend who quit drinking entirely (yay!), but now eats 5x as much fast food as he used to because he now buys a hamburger every time he has the craving to drink (boo!). So how do you quit the addiction entirely? Being hooked on burgers might be less dangerous than alcohol, but it's still not a good habit, ya know?