• Medicine
  • Published in
    Aviation, space, and…
    1991

Adaptation of sleep and circadian rhythms to the Antarctic summer: a question of zeitgeber strength.

@article{Gander1991AdaptationOS,
  title={Adaptation of sleep and circadian rhythms to the Antarctic summer: a question of zeitgeber strength.},
  author={Philippa Gander and John A. Macdonald and John C Montgomery and Michael G. Paulin},
  journal={Aviation, space, and environmental medicine},
  year={1991},
  volume={62 11},
  pages={
          1019-25
        }
}
Adaptation of sleep and circadian rhythms was examined in three temperate zone dwellers arriving in Antarctica during summer. Rectal temperature, wrist activity, and heart rate were monitored continuously, sleep timing and quality noted on awakening, and mood and fatigue rated every 2 h while awake. Sleep was poorer in 2/3 subjects in Antarctica, where all subjects reported more difficulty rising. Sleep occurred at the same clock times in New Zealand and Antarctica, however, the rhythms of… CONTINUE READING
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