The concept of group therapy was developed in the first half of the twentieth century, as a form of psychotherapy in the United States of America by Joseph H. Pratt, Paul Schilder and Trigant Burrow. Since then, this form of therapy has undergone many changes to encompass diverse groups of people and their problems. Healing together as a family or a community is an old concept. This concept has been derived from problem-solving approach used in homes, and put forth with a clinical approach to help people collectively solve their problems, despite being unrelated to each other.
The therapy is based on the premise of helping people emotionally and psychologically to deal with personal problems, utilizing the collective power of the group and with assistance of a therapist who leads the entire process. Exercise techniques and duration are determined by group needs, and are mostly decided by the therapist in coordination with the family of the individuals in the group. Most therapists develop their own exercises, however, the ones listed below are some of the generic activities usually followed in most group therapy sessions.