NEET PG DENTAL EXAM

Detailed explanation-1: -Melatonin is the only known hormone synthesized by the pineal gland and is released in response to darkness hence the name, “hormone of darkness” [10]. Melatonin provides a circadian and seasonal signal to the organisms in vertebrates.

Detailed explanation-2: -The production and release of melatonin from the pineal gland occurs with a clear daily (circadian) rhythm, with peak levels occurring at night.

Detailed explanation-3: -Pineal melatonin is a hormone that regulates the body’s daily (circadian) clock and so melatonin is commonly used in human research to understand the body’s biological time. There is a rhythm to the biology of the pineal gland and melatonin is secreted according to the amount of day light a person is exposed to.