In an effort to make drug rehabilitation is accessible to persons with co-occurring psychological problems, Partial Hospitalization drug and alcohol rehabilitation centers in Thousand Oaks, California can provide treatment in particular hospital and mental health hospital settings for clients who will need rehab. Partial Hospitalization is the term used for this type of drug and alcohol rehabilitation facility, due to the fact that the individual takes part in drug and alcohol rehab in the day and will then return home in the evening up to seven days a week. This is why these drug treatment programs are also called Day Treatment. Partial Hospitalization drug rehabilitation facilities deal with drug and alcohol addiction problems and psychological issues concurrently so that treatment staff can make sure that the person won't relapse once drug rehabilitation is done.