Psychotherapy is an intentional interpersonal relationship used by trained psychotherapists to aid a client or patient in problems of living. It aims to increase the individual's well-being. Psychotherapists employ a range of techniques based on experiential relationship building, dialogue, communication and behavior change and that are designed to improve the mental health of a client or patient, or to improve group relationships (such as in a family). Psychotherapy may also be performed by practitioners with a number of different qualifications, including psychologists, marriage and family therapists, occupational therapists, licensed clinical social workers, counselors, psychiatric nurses, psychoanalysts, and psychiatrists.