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[Bright light treatment against sleep disturbances in nursing homes--a non-pharmacological alternative]
1Institutt for allmenn- og samfunnsmedisin, Universitetet i Oslo, Postboks 1130 Blindern, 0318 Oslo. arne.fetveit@medisin.uio.no
Background:
Age-related sleep disturbances may be caused by changes in the circadian rhythm, either by phase shifting and/or by a reduction of its amplitude. This may result in less nocturnal sleep and less wakefulness during the day.
Material And Methods:
The article is based on our own research and on relevant studies and reviews in this field.
Results And Interpretation:
Bright light treatment may alter the phase and strengthen the existing circadian rhythm in patients with insomnia, thus creating a clearer distinction between night and day. It is reported that bright light treatment in the morning for patients with dementia may improve sleep maintenance.