"OCD is a mental illness that affects about one in forty adults and one in one hundred children in the United States. The disorder exhibits two major aspects which give it its name: obsessions, which are recurring unwanted thoughts, urges, or mental images that cause a person anxiety and distress; and compulsions, repetitive behaviors that a person feels compelled to perform. OCD sufferers experience obsessions, compulsions, or both at the same time, and may often suffer from other conditions, such as a state of severe depression"-- Provided by publisher.