Persons with co-occurring mental and substance abuse disorders must address both issues if there is any hope for them to recover completely. Some people take drugs or alcohol to ease symptoms of mental health disorders, and some people take drugs which then, in turn, brings about symptoms which mimic mental health issues, such as anxiety and depression. Drug rehabilitation professionals know how to distinguish between the two, and can work with clients to appropriately treat real mental health disorders in tandem with any other substance abuse treatment that is done with the individual. This has proven to be effective in keeping people with mental health disorders off of drugs and alcohol and mentally stable and happy.