Study Shows the Impacts of Lighting in Our Daily Life Many researches have indicated that lighting plays a critical role for human wellbeing and can significantly affect our productivity. The Lighting Research Center at Rensselaer Polytechnic Institute published a study in 2018*, demonstrating that circadian-effective lighting installed in office buildings can help workers to reduce sleepiness and increase alertness and energy. “Circadian-effective” lighting describes light source delivering effective photic stimulus that suppress melatonin, which often re...