Neurohormones is a class of signaling molecules synthesized by specialized nerve cells (neurons) and released into the bloodstream or other bodily fluids to act on distant target cells. As an academic concept and research field, the study of neurohormones investigates their synthesis, release mechanisms, transport, molecular targets, and crucial roles in mediating communication between the nervous system and the endocrine system, thereby regulating diverse physiological processes such as growth, metabolism, reproduction, and stress responses.