Human centric lighting and circadian lighting applications have become popular as people are getting more aware of the effect of lighting on our physical and psychological condition. To further understand the connection between lighting and people’s wellbeing, a new study found a cell in the retina which create the effect of light on human. Researchers at the University of Washington Health Sciences (UW Medicine) identifies a cell in the retina, which plays an important role in signaling our brain centers that regulate circadian rhythms, boost alertness, help memory and co...