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Hopkins team explores the dark side of light
Scientists who study sleep understand that light has a dark side, because it can interrupt natural rhythms, causing the mood and learning problems that go with lack of rest. Johns Hopkins University researchers have taken the understanding a step further and to a cellular level, finding that exposure to bright light at night appears to create these problems by itself, even apart from sleep patterns.
By Arthur Hirsch, The Baltimore Sun
December 7, 2012