The abuse of food, alcohol, or drugs is essentially a material response to a need that isn't really physical at its foundation.. What we are looking for is pure joy rather than mere sensation, or even oblivion of sensation. Addiction is unrecognized spiritual craving.
Fear is the memory of pain. Addiction is the memory of pleasure. Freedom is beyond both.
Complications take many forms, including an imbalanced lifestyle, toxic relationships, hidden emotional debts, resistance, indecision, addictions, and negative conditioned beliefs. When our life is overly complicated, we're weighed down by superfluous things at every level.
The only cure for addiction is spiritual.
Addiction is craving fulfillment from something that cannot provide fulfillment. In this sense it is not different than the basic mechanism of ignorance that keeps everyone in bondage. With substance addiction the mind/body sets up a vicious cycle that perpetuates the dependence.
Addiction is when you can't get enough of what you don't want any more.