Outpatient treatment gives treatment clients the opportunity to maintain specific responsibilities and aspects of their way of life while taking part in alcohol and drug rehab services. Outpatient treatment is a moderate level of treatment, and should not be mistaken for the level of rehab offered in an inpatient or residential rehabilitation program that is much more extensive. Outpatient treatment may be suitable for somebody who has a short history of drug or alcohol use for instance, but will most surely not be adequate for someone whose rehabilitation needs exceed that which outpatient treatment is able to provide. Individuals involved in drug and alcohol use often require a considerable change of environment, because many of the things which prompt their substance abuse are purely environmental. For example, when someone has been physically or psychologically mistreated and this is triggering their drug abuse, there is no way for any treatment endeavours to have success if they return to such situations each day. In outpatient treatment, individuals can take advantage of group and individual counseling, as well as family therapy services. In outpatient treatment, most centers will provide services 5 to 7 days per week on either a part-time or full time basis for four weeks or longer in some cases.