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Course Description: AEC Daily: Circadian-Effective LED Lighting for Day-Active People in Interior Environments
ONGOING - FREE - 1 HOUR
Light is fundamental to life, and Earth’s 24-hour light–dark cycle directly impacts our physiology and behavior. Indoors, reduced exposure to daylight and increased exposure to electric light after dark interfere with circadian rhythms. This course examines how circadian rhythms affect human performance, health, and well-being, the receptors in the eye that send visual and nonvisual responses to the brain, the action spectrum for circadian stimulus, and the metrics used to quantify circadian-stimulus light. Also presented are methods for applying circadian-effective lighting systems to satisfy the requirements of WELL Building Standard™ v2, Light, Feature L03, Circadian Lighting Design.
ONGOING - FREE - 1 HOUR
Learning Objective
Discuss the relationship between Earth’s 24-hour light–dark cycle and human circadian rhythms, outlining the positive health and performance outcomes associated with a long-term behavioral pattern of bright days filled with circadian-effective light followed by dark nights.
Explain the action spectrum for circadian entrainment and summarize the roles of intrinsically photosensitive retinal ganglion cells, rods, and cones in synchronizing circadian rhythms to the 24-hour day.
Recall the terms and metrics used to identify and quantify light as a non-image-forming circadian stimulus, as adopted by WELL v2™.
Apply circadian-effective lighting to comply with WELL v2, Light, Feature L03, Circadian Lighting Design and positively impact the health and well-being of day-active building occupants.