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 
Endocrine system: Hormones, Classification, mechanism, and functions
The endocrine system is a complex network of glands that secrete hormones to regulate various bodily functions, including metabolism, growth, reproduction, and homeostasis. Hormones are chemical messengers that travel through the bloodstream to target organs or tissues, where they elicit specific physiological responses. Here is a detailed note on the …
