Residential long-term treatment in Flanders is according to statistics the most optimum treatment program and approach in terms of results when considering long-term abstinence after completing treatment. Residential long-term treatment provides the person in rehabilitation a virtual oasis. In residential long-term treatment the person can take part in treatment services in a positive and distraction free environment where there is very little that might cut across their success or advancement while in alcohol and drug rehab. The long-term element is in essence what will guarantee the individual is confident and secure enough to be able to remain off of drugs when they leave alcohol and drug rehabilitation in Flanders, simply because four weeks is most often simply insufficient time in drug treatment for the most severely addicted people. It can take many weeks to attain the confidence that one can remain drug free, with a significant and intensive length of time spent in rehab in a residential program.