Melatonin

Melatonin is a hormone produced by the pineal gland. Called "sleep hormone" because it is responsible for regulating the rhythm of sleep and wakefulness. Production is related to the rhythm of light and darkness, depending on the Depending on the time of day and night, different amounts of melanin. In the dark, the pineal gland produces larger amounts of melatonin, and therefore its concentration in the blood increases. Indications for determining melatonin levels are problems with falling asleep, daytime sleepiness, general distraction and impaired concentration, irritability and poor mood.