Insomnia during the “dark period” in northern Norway
Abstract Midwinter insomnia (M1) is an initial type insomnia that is typically seen north of the Polar Circle during the “dark period”, when the sun docs not rise above the horizon. The cause of MI is not known, but it seems reasonable to assume that it is (he expression of a phase delay of the slee...
Published in: | Acta Psychiatrica Scandinavica |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1985
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Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1600-0447.1985.tb05064.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0447.1985.tb05064.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0447.1985.tb05064.x |