This is pure bullshit.

Melatonin is a naturally occurring hormone in the human body and has nothing to do with the "DARK SIDE."


From [link to en.wikipedia.org]


Light dependence

Production of melatonin by the pineal gland is inhibited by light and permitted by darkness. For this reason melatonin has been called "the hormone of darkness" and its onset each evening is called the Dim-Light Melatonin Onset (DLMO). Secretion of melatonin as well as its level in the blood, peaks in the middle of the night, and gradually falls during the second half of the night, with normal variations in timing according to an individual's chronotype.



The poster is one who doesn't know the difference between light and dark (daytime vs nighttime), and occult connotations of light and dark (positive vs negative).