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Swedish Utility Hopes Extra Light Stimulates Students

From October through February, Umea, Sweden, 500 kilometers from the Arctic Circle, gets between 42 and 45 minutes of sunlight during the day. The rest of the time, it is pitch-black outside. Studies have shown that many people develop a type of depression called seasonal affective disorder, or SAD, during the winter months because of the shortened hours of daylight. In Swedish communities blanketed by winter darkness, people, especially teenagers, become noticeably tired and lack energy,...

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