Social work is a professional and academic discipline that seeks to improve the quality of life and wellbeing of an individual, group, or community by intervening through research, policy, community organizing, direct practice, and teaching on behalf of those afflicted with poverty or any real or perceived social injustices and violations of their human rights. Research is often focused on areas such as human development, social policy, public administration, psychotherapy, program evaluation, and international and community development. Social workers are organized into local, national, continental and international professional bodies. Social work, an interdisciplinary field, includes theories from economics, education, sociology, medicine, philosophy, politics, and psychology. In many jurisdictions, clinical social workers are licensed mental health professionals.