Daylighting Considerations to Boost Occupants’ Health in Midst of Time Change Malaise

September 23, 2025

Most Americans will dial their clocks back an hour on Nov. 2, resulting in two changes that negatively impact their physical and mental health: reduced daylight and a disruption to their circadian rhythms. The sudden reduction in evening sunlight decreases the brain's production of serotonin, leading to low mood, fatigue and seasonal affective disorder. This shift in sleep-wake cycles can also cause sleep deprivation and lead to higher rates of stroke and obesity.

These concerns underscore the importance of contractors and designers optimizing daylight performance in buildings to boost occupants’ biological and psychological wellbeing. Exposure to daylight resets the body’s circadian rhythms, boosts serotonin levels and reduces fatigue, and results in higher vitality and better sleep quality. Achieving effective daylighting in buildings often involves many complex considerations far beyond simply adding windows. That’s why I thought you might be interested in this Kingspan article about key factors to consider with daylight design for buildings, offering expert insights about a wide range of possible daylighting solutions and integrating them into a diversity of building designs.

Kingspan Light and Air offers high-performing daylighting strategies that infuse a space with light, while also heightening a building’s aesthetics and conserving energy. These include a variety of translucent wall assemblies, as well as polycarbonate, metal-framed and unit skylights.

More