Neurochemistry
Neurochemistry is the study of the nervous system of chemicals and their reactions. Neurochemistry may cover virtually all the anatomy and physiology of the central and peripheral nervous systems, theoretically a tremendously wide field. Neurochemical research has practically tended to concentrate on endogenous chemicals (particularly neurotransmitters) and nongenetic molecular aspects of the nervous system, the pathogenesis of neuropsychiatric disorders, and the detection of biomarkers of diseases.