The goal of treatment for alcoholism is abstinence. Those with poor social support, poor motivation, or psychiatric disorders tend to relapse within a few years of treatment. For these people, success is measured by longer periods of abstinence, reduced use of alcohol, better health, and improved social functioning. Recovery and Maintenance are usually based on 12 step programs and AA meetings. Opioid rehabs specialize in supporting those recovering from opioid addiction. They treat those suffering from addiction to illegal opioids like heroin, as well as prescription drugs like oxycodone. These centers typically combine both physical as well as mental and emotional support to help stop addiction. Physical support often includes medical detox and subsequent medical support (including medication), and mental support includes in-depth therapy to address the underlying causes of addiction. Substance rehabs focus on helping individuals recover from substance abuse, including alcohol and drug addiction (both illegal and prescription drugs). They often include the opportunity to engage in both individual as well as group therapy.