Free-Running Human Circadian Rhythms in Svalbard
Abstract The body temperature, activity-rest time, electrolytes of urine samples and mood was measured in two persons during a 19 day period under continuous light conditions in the arctic (vicinity of Ny Ålesund, Svalbard-Spitsbergen). For temperature recording a new thermoprobe and a portable prin...
| Published in: | Zeitschrift für Naturforschung C |
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| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Walter de Gruyter GmbH
1979
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1515/znc-1979-5-626 https://www.degruyter.com/view/journals/znc/34/5-6/article-p470.xml https://www.degruyter.com/document/doi/10.1515/znc-1979-5-626/xml https://www.degruyter.com/document/doi/10.1515/znc-1979-5-626/pdf |
| Summary: | Abstract The body temperature, activity-rest time, electrolytes of urine samples and mood was measured in two persons during a 19 day period under continuous light conditions in the arctic (vicinity of Ny Ålesund, Svalbard-Spitsbergen). For temperature recording a new thermoprobe and a portable printer was used. Possible week Zeitgeber of the 24 hour day did not synchronize the circadian system, since circadian rhythms of about 26 hours were found. These results open up the pos sibility to study effects of drugs on the circadian system of humans under Svalbard conditions. |
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