Endocrinology is a hormone science that has grown into a diverse and complex field of biological research and clinical practice. The inexorable rise of this field has been based on the integration of knowledge from multiple disciplines. It cuts across the life sciences and impacts heavily on global health and well being. Hormones have influence over a wide range of physiological activities, including; growth, development, alertness and bone growth. Hormones can also contribute to major diseases such as diabetes, thyroid conditions, neurological problems, obesity and cancer to name only a few. Continuing research into the biomedical processes involved is shedding new light on causes and consequences of normal and abnormal cell to cell signalling and therefore providing ever more effective molecular tools to improve health and tackle disease. The Endocrine Array can be used as an excellent tool to further the field of hormone research.