Obsessive-compulsive disorder is a specific mental disorder. When such a pathology appears, you develop a desire to monitor and double-check everything constantly. Such behavior begins to affect everyday life negatively, you get hung up on unimportant things. In the venerable form of the disorder, a person often has disturbing obsessive thoughts, which can be eliminated by strictly obsessive rituals. According to information received from the National Institute of Mental Health in America, tw...