As more chemicals are used the body works harder to adapt to the new levels. Gradually, over time it requires more chemicals to get the original benefit of whatever is used. When this, coupled with the increased psychological dependence, a very powrful compulsion to use is set in motion. Addiction actually creates changes in the nero-transmitters and neural structures in the brain which becomes the origin of cravings that are difficult to resist . These neuro adaptations account for many of the reasons for relapse and seemingly paradoxical problem of a person engaging in self-destructive behaivors.
Addiction occurs because of multiple risk factors .
Finding out who is a risk can be done by examining a number of interrelated factors. He has had multiple relapses in spite of an intensive rehabilitation program. The answer to this question may be found in his history. Addiction has devastating psychological consequences. Not only does the addict come to feel that way about himself, but of course significant others often feel the same way.