The effects of prior light history on the suppression of melatonin by light in humans

When u expose yourself to daily low light intensity, like the kind of dim lighting in most indoor environments, it significantly INCREASES MELATONIN SUPPRESSION at night if u are exposed to night time artificial lighting. The test group who got outside and was exposed to bright sunlight many times during the day did not have nearly as much melatonin suppression at night.

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