Psychotherapy, or personal counseling having a psychotherapist, 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 sense of their own well-being. Psychotherapists employ a variety of techniques based on experiential relationship behavior, building, conversation and communication change and that are designed to increase the mental health of a customer or patient, or to boost group relationships (such as within a family). Psychotherapy may also be done by practitioners with a number of different credentials, including psychiatry, clinical mindset, clinical social work, counseling psychology, mental health guidance, clinical or psychiatric social work, family and relationship therapy, rehabilitation counseling, songs therapy, occupational therapy, psychiatric others, nursing and psychoanalysis. It may be legitimately regulated, voluntarily regulated or unregulated, depending on the jurisdiction. Needs of these professions vary, but often require graduate university and supervised clinical practical experience. Most forms of psychotherapy use spoken conversation. Some also use various other forms of communication such as the written word, art and drama narrative tale or music. Psychotherapy with children and their parents frequently involves play, dramatization (i.e. role-play), and drawing, with a co-constructed narrative from these no-verbal and displaced modes of interacting. Psychotherapy occurs within a structured experience between a trained client and therapist(s). Purposeful, theoretically based psychotherapy began in the nineteenth century with psychoanalysis; since then, lots of other approaches have been developed and continue to be created. Treatments are generally used in response to a variety of specific or non-specific manifestations of medically diagnosable and/or existential crises. Treatment of everyday problems is a lot more often referred to as counseling (a difference originally adopted by Carl Rogers). However, the term therapy is sometimes used interchangeably with "psychotherapy". While some psychotherapeutic treatments are designed to treat the patient utilizing the medical model, many psychotherapeutic approaches do not adhere to the sign-based model of "illness/cure". Some practitioners, such as humanistic therapists, see themselves much more in a facilitative/helper role. Therapists are expected, and usually legally bound, to respect client or patient confidentiality, as sensitive and deeply personal topics are frequently discussed during psychotherapy. The critical importance of confidentiality is enshrined in the regulatory psychotherapeutic organizations' codes of moral practice.