Melatonina
Melatonina est hormon ab epiphysi effusum, quod numerum circadianum, id est, rhythmum diei noctisque in corpore dirigit.

Bibliographia 
 Arendt, J., et Y. Touitou. 1993. Melatonin and the Pineal Gland: From Basic Science to Clinical Application. Elsevier Science. ISBN 0-444-89583-3 (opus fundamentale huius materiae)
 Webb, Susan M., et Manuel Puig-Domingo. 1995. "Role of melatonin in health and disease." Clinical Endocrinology 42: 221–34.
 Hilgers, Arnold, et Inge Hoffmann. 1996. Melatonin.'' Monaci: Mosaik Verlag. ISBN 3-576-10622-7.

Agomelatinum (medicamentum)
Nucleus suprachiasmaticus

Nexus externi
De melatonina 

Antioxidantia
Chronobiologia
Hormonta