Two Circadian Lighting Studies

Two recent studies probed how circadian lighting influences the experiences of older individuals Grant and colleagues investigated falls in care homes by elderly (mean age 81 +/- 12 years old) residents: some test locations “had solid-state lighting installed throughout the facility that changed in intensity and spectrum to increase short-wavelength (blue light) exposure during the day (6 am–6 pm) and decrease it overnight (6 pm–6 am). The control sites retained standard lighting with no change in intensity or spectrum throughout…

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