To ensure that drug and alcohol treatment can be available to those with co-occurring psychological problems, Partial Hospitalization drug rehab centers in Somerville can supply rehab in particular hospital and mental health clinic settings for clients in need of treatment. Partial Hospitalization is the term used for this kind of drug rehab facility, because the person receives drug rehab in the daytime and returns home in the evening up to seven days a week. This is why these drug and alcohol rehab programs are also known as Day Treatment. Partial Hospitalization drug treatment centers deal with drug and alcohol addiction problems and psychological disorders simultaneously so that treatment staff can ensure that the individual doesn't relapse the moment drug rehab is finished.