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Dark therapy
This article is about the medical uses for the absence of light. For the Echobelly song, see Dark Therapy (song).
Dark therapy is the practice of keeping people in complete darkness for extended periods of time in an attempt to treat psychological conditions.
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The human body produces the melatonin hormone, which is responsible for supporting the circadian rhythms. Darkness seems to help keep these circadian rhythms stable.[1]
Dark therapy was said to be founded by a German anthropologist by the name of Holger Kalweit.[2] A form of dark therapy is to block blue wavelength lights to stop the disintegration of melatonin.[3]
This dark therapy concept was originated back in 1998 from a research which suggested that systematic exposure to darkness might alter people's mood.[4] Original studies enforced 14 hours of darkness to bipolar patients for three nights straight.
This study showed a decrease of manic episodes in the patient