Simon is right. Scientists seem to think that this study conducted in USC was the first study that found conclusive and totally unbiased evidence that a completely lifestyle-based treatment model, which was administered exclusively by occupational therapists, definitely improved the quality of life for their participants. Earlier studies were unable to find solid evidence to prove concretely that an occupational-based approach can help patients who suffer from chronic illness. This scarcity that has been known of since 2011, when a review of studies about occupational-therapy based approaches was conducted. The USC researchers hope that they can use their definitive findings in this study to help bolster this approach’s reputation in the field.