dpbishop:Addiction isn't necessarily an indication of an underlying problem. If it was former addicts who have resolved their 'underlyng problem' would be able to drink or do drugs recreationally without renewing the addiction.
This I disagree with, it has been proven (perhaps theorized, I thought proven) that the addicts brain undergoes changes during prolonged use. Therapy may solve the emotional issue that led to the addictive behavior, but indulgence in the drug of choice can stimulate those areas of the brain to crave the exposure again.