Physiology is the science of life. It is the branch of biology that aims to understand the mechanisms of dwelling things, from the idea of cell function at the ionic and molecular stage to the incorporated behaviour of the complete body and the have an impact on of the outside environment. Research in physiology facilitates us to understand how the body works in health and how it responds and adapts to the demanding situations of normal existence; it also helps us to decide what goes incorrect in disease, facilitating the improvement of new remedies and recommendations for maintaining human and animal health. The emphasis on integrating molecular, cellular, structures and whole frame feature is what distinguishes physiology from the alternative lifestyles sciences. Physiology is an experimental science. Research in physiology advances our know-how of the certain mechanisms that control and adjust the behaviour of living things. We keep to learn more about fundamental processes, together with the manage of heart rate or the sense of vision, through comprehensive exploration of the multiple processes involved.