WHY LIGHT IS A DRUG
There are few real-world solutions that successfully combine an understanding of the physiological effects of light with efficiency and aesthetics
As we grow older, our vision is reduced and the amount of light that enters the retina and tells the body what time it is decreases too. Add to that the many hours spent indoors once we’re no longer mobile, and the potential lack of adequate light in care homes, and it becomes clear that there is a gap of light intake that new lighting technology can attempt to fill. Lab tests have found that exposure to moderate intensity light in the morning changes the circadian system, bringing forward the onset of melatonin and therefore altering the sleep-wake cycle. In one study, two hours of light stimulation on two consecutive mornings using a blue short wavelength (470nm) LED advanced the onset of melatonin by over one hour.
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Article Written by: Robert Bain and Nicky Trevett
Photo courtesy of: Cormac Hanley and Andrew Hendry