Impact of Windows and Daylight Exposure on Overall Health and sleep Quality of Office Workers: A Case-Control Pilot Study

This case-control pilot study examined the impact of natural light exposure in office environments on sleep quality and overall health. Office workers with access to windows had significantly better sleep quality, longer sleep duration (46 minutes more per night), and greater physical activity compared to those in windowless environments. Increased light exposure was associated with reduced sleep disturbances and higher vitality. These findings emphasize the importance of natural light in workplaces for enhancing sleep, mood, and cognitive function, benefiting both individual well-being and workplace productivity.

If your workplace lacks natural light, aim to spend breaks outdoors or near windows to increase light exposure. Natural daylight can improve sleep quality, reduce fatigue, and boost mood. For workplaces without windows, consider installing daylight-simulating artificial lighting. This recommendation is based on strong evidence from workplace comparisons, emphasizing light exposure's key role in sleep and overall health.