Pathophysiology is the study of the abnormal changes in the body's physiology that occur as a result of disease or injury. It involves understanding the underlying mechanisms of how diseases develop, progress, and cause symptoms in the body. Pathophysiology seeks to uncover the complex interactions between various biological systems and processes that contribute to the development of diseases and disorders. By studying pathophysiology, researchers aim to improve our understanding of the root causes of illnesses and develop new treatments and interventions to better manage and prevent diseases.