The non-visual effects of light have become a hot topic in the study of how lighting
environments affect humans. For an extended time, living and working in an isolated …

Background Sick building syndrome (SBS) is a condition affecting occupants of a building
from which they may experience a series of non-specific symptoms from being in that …

Indoor environmental quality (IEQ) is a general indicator of the quality of conditions inside a
building. We investigated associations of perceived IEQ including air quality, thermal …

Background We aimed to examine the association between shift work and sleep quality in a
diverse occupational type. Methods This was a cross-sectional study of self-reported sleep …

Objectives We aimed to examine the prevalence of poor sleep quality and short sleep and
their associated factors in a working population in Singapore. Design This is a cross …

The development of underground spaces serves a range of common urban functions,
including workspaces. However, underground workplaces, work-related factors and the …

Little is known about the effect of working conditions on vitamin D status in Southeast Asia,
where vitamin D deficiency is common despite the presence of sunlight all year round in …

The Pittsburgh Sleep Quality Index (PSQI) is a widely used measure for assessing sleep
impairment. Although it was developed as a unidimensional instrument, there is much …

Background: Greater adoption of wearable devices with multiple sensors may enhance
personalized health monitoring, facilitate early detection of some diseases, and further scale …

Purpose Due to land resource scarcity, sustainable urban development in high-density cities
has long been challenging. As such, many cities are formulating plans to “dig deep” …