Melatonin is a hormone primarily produced by the pineal gland in the brain and is a critical regulator of the sleep-wake cycle and various circadian rhythms. It has additional roles in antioxidant defense, immune function, and seasonal biological rhythms. This note provides a comprehensive overview of melatonin synthesis, its biological …
DeepakRajput 
Pineal Gland: Definition, Structure, Functions, and Disorders
Definition The pineal gland is a small, pea-shaped endocrine gland located in the brain. It is primarily responsible for the production and regulation of melatonin, a hormone that influences sleep-wake cycles and seasonal biological rhythms. Structure of Pineal Gland The pineal gland is situated near the center of the brain, …
