Is Melatonin A Solution For Insomnia? Learn More About Hormone


Melatonin: In October this year, Anvisa (National Health Surveillance Agency) approved the use of melatonin as a food supplement in Brazil. The agency’s decision establishes that the product can only be used by people over 19 years of age and in doses that do not exceed 0.21 mg per day.

Pharmacies in the country are already preparing for sales of the product, which do not depend on a prescription, which can encourage an indiscriminate use of the substance in the opinion of experts.

Known as the sleep hormone, melatonin attracts people who have difficulty sleeping or sleep poorly, but according to neurologist Luciano Ribeiro, coordinator of the Sleep Medicine Unit at Hospital Alemão Oswaldo Cruz, in São Paulo, it is more suitable for people who work late at night or who travel to places with a very different time zone from what they are used to.

Melatonin is naturally produced by the body in the dark, from dusk to dawn, and is linked to the rhythms and biological cycles of wakefulness (being awake) and sleep in human beings.

“It is the main substance that regulates this rhythm, which defines the production of other important hormones, such as growth hormone”, says Ribeiro. Other body functions are also controlled by the so-called circadian cycle, which coordinates how the body works over the 24-hour period.