[Bright light treatment against sleep disturbances in nursing homes--a non-pharmacological alternative].
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.


METHODS
The article is based on our own research and on relevant studies and reviews in this field.


CONCLUSIONS
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.
Fetveit
Arne
A
Institutt for allmenn- og samfunnsmedisin, Universitetet i Oslo, Postboks 1130 Blindern, 0318 Oslo. arne.fetveit@medisin.uio.no
Bjorvatn
Bjørn
B
D000368:Aged; D000375:Aging; D006801:Humans; D008029:Lighting; D009735:Nursing Homes; D010789:Phototherapy; D020178:Sleep Disorders, Circadian Rhythm / Q000628:therapy*