In the Pacific Northwest, where it’s overcast most days, lots of people suffer from light deprivation, which results in mood swings and depression. There’s even a scientific name for this problem: “Seasonal Affective Disorder,“ or S.A.D. People suffering from S.A.D. have to set up special light panels in their homes and get heavy doses of illumination in order to be happy campers. We need light. We can’t
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