Rehab candidates are individuals who are seeking help for addiction or other mental health issues. They may be referred to a rehabilitation center or program by a doctor, family member, or other professional. Rehab candidates typically have a history of substance abuse and/or mental health problems, and they are looking for assistance in overcoming their issues. They may also be referred to a rehabilitation center or program by a court order. Rehab candidates often require specialized treatment and support in order to successfully recover from their addiction or mental health issues.