Rehab is an abbreviation for rehabilitation. In the field of addiction and mental health rehab is a commonly referred term for a rehab center, addiction rehabilitation, psychiatric rehabilitation, rehabilitation counseling, alcohol rehab, drug rehab and similar. Why is it such a popular term? It was made famous by Dr. Drew Pinsky an addiction specialist for the television show "Celebrity Rehab". It was also memorialized in the song "Rehab" by the late singer-songwriter Amy Winehouse. Did you know that between 1840-1920's rehabs were referred to as inebriate institutions, inebriate asylums or private sanitaria?