Molecular medicine is a branch of medical science that focuses on understanding diseases at the molecular level. It involves studying the interactions between genes, proteins, and other molecules to identify the underlying causes of illnesses. This approach helps in developing targeted therapies that can treat diseases more effectively. By utilizing techniques from genetics, biochemistry, and cell biology, molecular medicine aims to personalize treatment for patients. This means that therapies can be tailored to an individual's specific genetic makeup, improving the chances of successful outcomes. Overall, molecular medicine represents a significant advancement in the field of healthcare.