WELL AP Exam WELL-AP Topic 8 Question 19 Discussion

Exposure to early morning sunlight plays a critical role in circadian photoentrainment, helping to synchronize the body's internal clock with the natural day-night cycle. This exposure, particularly within the first hours after dawn, can induce a 'phase advance' shift in the circadian phase, promoting earlier sleep and wake times. This alignment with natural light patterns supports overall well-being, improving sleep quality, mood, and cognitive function. The WELL Building Standard recognizes the importance of natural light and its impact on circadian rhythms, advocating for building designs that maximize the use of daylight while minimizing disruption to the body's natural cycles, thereby fostering environments that support the occupants' health and well-being.