Physiology is the science of the functions of living organisms and their parts. It forms the foundation of all medical sciences. Physiology is a very broad scientific discipline that sits at the heart of many related subjects. As a subject, it spans from the molecular and cellular level through to organ, tissue and whole system level. It provides the bridge between scientific discoveries and their application to medical science. When we talk about Human physiology, it is the study of the functioning of the human body from the time of conception till old age under resting as well as in altered conditions. The study of human physiology integrates knowledge across many levels, including biochemistry, cell physiology, and organ systems. The Department of Human Physiology serves its students by providing training in human physiology to prepare them for careers in medicine, allied health professions, and biomedical research. Human physiology is the science of the mechanical, physical, and biochemical function of humans, and serves as the foundation of modern medicine. As a discipline, it connects science, medicine, and health, and creates a framework for understanding how the human body adapts to stresses, physical activity, and patho-physiology of the disease.