Behavior: The Murky Time

By air, the Norwegian cities of Oslo and Tromsø are only 650 miles and 100 minutes apart. The psychological distance, however, is much greater, for Tromsø lies 200 miles north of the Arctic Circle, and its 40,000 inhabitants live two months of each year without seeing the sun. In this polar blackness or mørketiden* (murky time), the mentally unstable may slip over the edge into a temporary state of profound mental disturbance. Even those who are emotionally healthy the rest of the year may become unaccountably tense, restless, fearful and preoccupied with thoughts...

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