The aim of this project is to evaluate the effect of a dynamic light in order to improve the circadian rhythm, provide a better sleep and well-being, and in the long run an improved recovery. The primary question is whether dynamic artificial light with circadian stimulus can affect the circadian rhythm. The secondary question is whether this also provides better sleep and well-being.
The group that is particularly interesting to study is a geriatric population that is more sensitive to circadian rhythm disorders, sleep disorders and confusion in connection with hospitalization and that can be of particular benefit from this intervention.
Over the age of 65 years
Admitted to one of the included study rooms
Overdose addictive substance
Acute neurological disease
Melatonin treatment
Probable survival <5 days
Parallel
Biocentric light
Other interventionLight that changes in intensity and spectral distribution during the day to mimick daylight. High in intensity and high circadian stimulus during daytime and low intensity and low circadian stimulus during late afternoon and night.
Melatonin curve
A change in the phase of the melatonin curve
Sleep
Change in sleep time
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