Cognitive Therapy in which the therapist and the client work together as a team to identify and solve problems. Therapists use the Cognitive Model to help clients overcome their difficulties by changing their thinking, behaviour, and emotional responses. Cognitive therapy is effective in more than 1000 outcome studies for a myriad of psychiatric disorders, including depression, anxiety disorders, eating disorders, and substance abuse, among others, and it is currently being tested for personality disorders. It has also been demonstrated to be effective as an adjunctive treatment to medication for serious mental disorders such as bipolar disorder and schizophrenia. Cognitive therapy has been extended to and studied for adolescents and children, couples, and families. Its efficacy has also been established in the treatment of certain medical disorders, such as irritable bowel syndrome, chronic fatigue syndrome, hypertension, fibromyalgia, post-myocardial infarction depression, noncardiac chest pain, cancer, diabetes, migraine, and other chronic pain disorders.