Getting this worked out early...
One in 14 of all 65 year olds in the UK are living with dementia. And 70% of those in care homes are suffering from this devastating condition that affects memory, mood and cognitive ability. One of the features of the disease is a shrinking of the volume of the SCN and a reduction in the strength of the signals. This pathway responds to light. At the same time, changes in the ability of the eye to respond to changes in contrast and changes in the transparency of the eye itself means that less light - and a narrower range of coloured wavelengths - are reaching the light-sensitive retina.
So it's shocking to learn that the average care home resident spends just 3 minutes per month outside - and to know that current standards simply don't deliver the quality or quantity of light that current research suggests they need.
And it's a relief to read this case study from Zumtobel that demonstrates how changes to the quality of light can transform the symptoms and outcomes for this fragile and growing population.
These papers may also be of interest.
And below is a link to a recent interview with WCS Care homes: they changed the lighting and cut out sundowning, and improved mood and resilience to infection through the pandemic.