Daylight is generally acknowledged to be an absolute requirement for comfort and health in buildings. Our eyes are adapted to it, and studies show that environments characterized by daylight are the most liked, and probably the most healthy. Daylight does more than save energy; people prefer day lit spaces for many reasons. It is the best light source for color rendition, and its variability is pleasurable.
“Study Links Workplace Daylight Exposure to Sleep, Activity, and Quality of Life“