Internal Medicine is a specialized branch of medicine focused on the prevention, diagnosis, and treatment of adult diseases affecting internal organs such as the heart, lungs, liver, kidneys, and digestive system. Internists manage chronic illnesses like diabetes, hypertension, heart disease, respiratory disorders, and infections while providing comprehensive, patient-centered care. They emphasize preventive measures, early detection, and evidence-based treatment to improve long-term health outcomes. With expertise in complex and multi-system conditions, internal medicine specialists coordinate care across disciplines, ensuring holistic management.