Partial Hospitalization, sometimes called "PHP" or Day Treatment, is a type of drug and alcohol rehab center that works to handle drug and alcohol addiction issues and mental health disorders which may be co-occurring. In a PHP center, the individual in rehab partakes in various rehab activities and techniques in the daytime and then returns home in the night time. This is done anywhere from five to seven days per week, depending on the severity of the drug or alcohol problem. Partial Hospitalization can be most effective for drug or alcohol addicted persons in Finland who are unable to pay for long-term inpatient care, or for those who are not able to be away from their families for extended durations of time. While in Day Treatment, treatment clients take part in standard treatment services for alcohol or drug addiction issues while also addressing psychological issues which may deter them from staying abstinent when rehab is complete.