The field of clinical psychology emerged to meet the societal need of providing care and services for individuals experiencing psychological problems. Throughout history, various groups like religious institutions, physicians, and social welfare organizations addressed psychological distress. In ancient Greece, thinkers like Hippocrates, Plato, and Galen explored biological, psychological, and social influences on illness and moved away from supernatural explanations. During the Middle Ages, the church was primarily responsible for treatment and emphasized spiritual causes. The Renaissance saw renewed interest in the physical world and mind-body dualism. The 19th century brought advances in understanding the relationship between the mind and body, influenced by thinkers like Pasteur, Rush, and Mesmer.